A simple, extendable, QR-code-ready protocol for requesting payments over Lightning.
- Encoding Overview
- Human-Readable Part
- Data Part
- Payer / Payee Interactions
- Implementation
- Examples
- Authors
The format for a Lightning invoice uses bech32 encoding, which is already used for Bitcoin Segregated Witness. It can be simply reused for Lightning invoices even though its 6-character checksum is optimized for manual entry, which is unlikely to happen often given the length of Lightning invoices.
If a URI scheme is desired, the current recommendation is to either use 'lightning:' as a prefix before the BOLT-11 encoding (note: not 'lightning://'), or for fallback to Bitcoin payments, to use 'bitcoin:', as per BIP-21, with the key 'lightning' and the value equal to the BOLT-11 encoding.
A writer:
- MUST encode the payment request in Bech32 (see BIP-0173)
- MAY exceed the 90-character limit specified in BIP-0173.
A reader:
- MUST parse the address as Bech32, as specified in BIP-0173 (also without the character limit).
- if the checksum is incorrect:
- MUST fail the payment.
The human-readable part of a Lightning invoice consists of two sections:
prefix
:ln
+ BIP-0173 currency prefix (e.g.lnbc
for Bitcoin mainnet,lntb
for Bitcoin testnet, andlnbcrt
for Bitcoin regtest)amount
: optional number in that currency, followed by an optionalmultiplier
letter. The unit encoded here is the 'social' convention of a payment unit -- in the case of Bitcoin the unit is 'bitcoin' NOT satoshis.
The following multiplier
letters are defined:
m
(milli): multiply by 0.001u
(micro): multiply by 0.000001n
(nano): multiply by 0.000000001p
(pico): multiply by 0.000000000001
A writer:
- MUST encode
prefix
using the currency required for successful payment. - if a specific minimum
amount
is required for successful payment:- MUST include that
amount
. - MUST encode
amount
as a positive decimal integer with no leading 0s. - If the
p
multiplier is used the last decimal ofamount
MUST be0
. - SHOULD use the shortest representation possible, by using the largest multiplier or omitting the multiplier.
- MUST include that
A reader:
- if it does NOT understand the
prefix
:- MUST fail the payment.
- if the
amount
is empty:- SHOULD indicate to the payer that amount is unspecified.
- otherwise:
- if
amount
contains a non-digit OR is followed by anything except amultiplier
(see table above):- MUST fail the payment.
- if the
multiplier
is present:- MUST multiply
amount
by themultiplier
value to derive the amount required for payment. - if multiplier is
p
and the last decimal ofamount
is not 0:- MUST fail the payment.
- MUST multiply
- if
The amount
is encoded into the human readable part, as it's fairly
readable and a useful indicator of how much is being requested.
Donation addresses often don't have an associated amount, so amount
is optional in that case. Usually a minimum payment is required for
whatever is being offered in return.
The p
multiplier would allow to specify sub-millisatoshi amounts, which cannot be transferred on the network, since HTLCs are denominated in millisatoshis.
Requiring a trailing 0
decimal ensures that the amount
represents an integer number of millisatoshis.
The data part of a Lightning invoice consists of multiple sections:
timestamp
: seconds-since-1970 (35 bits, big-endian)- zero or more tagged parts
signature
: Bitcoin-style signature of above (520 bits)
A writer:
- MUST set
timestamp
to the number of seconds since Midnight 1 January 1970, UTC in big-endian. - MUST set
signature
to a valid 512-bit secp256k1 signature of the SHA2 256-bit hash of the human-readable part, represented as UTF-8 bytes, concatenated with the data part (excluding the signature) with 0 bits appended to pad the data to the next byte boundary, with a trailing byte containing the recovery ID (0, 1, 2, or 3).
A reader:
- MUST check that the
signature
is valid (see then
tagged field specified below).
signature
covers an exact number of bytes even though the SHA2
standard actually supports hashing in bit boundaries, because it's not widely
implemented. The recovery ID allows public-key recovery, so the
identity of the payee node can be implied.
Each Tagged Field is of the form:
type
(5 bits)data_length
(10 bits, big-endian)data
(data_length
x 5 bits)
Currently defined tagged fields are:
p
(1):data_length
52. 256-bit SHA256 payment_hash. Preimage of this provides proof of payment.s
(16):data_length
52. This 256-bit secret prevents forwarding nodes from probing the payment recipient.d
(13):data_length
variable. Short description of purpose of payment (UTF-8), e.g. '1 cup of coffee' or 'ナンセンス 1杯'n
(19):data_length
53. 33-byte public key of the payee nodeh
(23):data_length
52. 256-bit description of purpose of payment (SHA256). This is used to commit to an associated description that is over 639 bytes, but the transport mechanism for the description in that case is transport specific and not defined here.x
(6):data_length
variable.expiry
time in seconds (big-endian). Default is 3600 (1 hour) if not specified.c
(24):data_length
variable.min_final_cltv_expiry
to use for the last HTLC in the route. Default is 9 if not specified.f
(9):data_length
variable, depending on version. Fallback on-chain address: for Bitcoin, this starts with a 5-bitversion
and contains a witness program or P2PKH or P2SH address.r
(3):data_length
variable. One or more entries containing extra routing information for a private route; there may be more than oner
fieldpubkey
(264 bits)short_channel_id
(64 bits)fee_base_msat
(32 bits, big-endian)fee_proportional_millionths
(32 bits, big-endian)cltv_expiry_delta
(16 bits, big-endian)
9
(5):data_length
variable. One or more 5-bit values containing features supported or required for receiving this payment. See Feature Bits.
A writer:
- MUST include exactly one
p
field. - If the
payment_secret
feature is set, MUST include exactly ones
field. - MUST set
payment_hash
to the SHA2 256-bit hash of thepayment_preimage
that will be given in return for payment. - MUST include either exactly one
d
or exactly oneh
field.- if
d
is included:- MUST set
d
to a valid UTF-8 string. - SHOULD use a complete description of the purpose of the payment.
- MUST set
- if
h
is included:- MUST make the preimage of the hashed description in
h
available through some unspecified means.- SHOULD use a complete description of the purpose of the payment.
- MUST make the preimage of the hashed description in
- if
- MAY include one
x
field.- if
x
is included:- SHOULD use the minimum
data_length
possible.
- SHOULD use the minimum
- if
- MAY include one
c
field.- MUST set
c
to the minimumcltv_expiry
it will accept for the last HTLC in the route. - if
c
is included:- SHOULD use the minimum
data_length
possible.
- SHOULD use the minimum
- MUST set
- MAY include one
n
field. (Otherwise performing signature recovery is required)- MUST set
n
to the public key used to create thesignature
.
- MUST set
- MAY include one or more
f
fields.- for Bitcoin payments:
- MUST set an
f
field to a valid witness version and program, OR to17
followed by a public key hash, OR to18
followed by a script hash.
- MUST set an
- for Bitcoin payments:
- if there is NOT a public channel associated with its public key:
- MUST include at least one
r
field.r
field MUST contain one or more ordered entries, indicating the forward route from a public node to the final destination.- Note: for each entry, the
pubkey
is the node ID of the start of the channel;short_channel_id
is the short channel ID field to identify the channel; andfee_base_msat
,fee_proportional_millionths
, andcltv_expiry_delta
are as specified in BOLT #7.
- Note: for each entry, the
- MAY include more than one
r
field to provide multiple routing options.
- MUST include at least one
- if
9
contains non-zero bits:- SHOULD use the minimum
data_length
possible.
- SHOULD use the minimum
- otherwise:
- MUST omit the
9
field altogether.
- MUST omit the
- MUST pad field data to a multiple of 5 bits, using 0s.
- if a writer offers more than one of any field type, it:
- MUST specify the most-preferred field first, followed by less-preferred fields, in order.
A reader:
- MUST skip over unknown fields, OR an
f
field with unknownversion
, ORp
,h
,s
orn
fields that do NOT havedata_length
s of 52, 52, 52 or 53, respectively. - if the
9
field contains unknown odd bits that are non-zero:- MUST ignore the bit.
- if the
9
field contains unknown even bits that are non-zero:- MUST fail the payment.
- SHOULD indicate the unknown bit to the user.
- MUST check that the SHA2 256-bit hash in the
h
field exactly matches the hashed description. - if a valid
n
field is provided:- MUST use the
n
field to validate the signature instead of performing signature recovery.
- MUST use the
- if there is a valid
s
field:- MUST use that as
payment_secret
- MUST use that as
The type-and-length format allows future extensions to be backward
compatible. data_length
is always a multiple of 5 bits, for easy
encoding and decoding. Readers also ignore fields of different length,
for fields that are expected may change.
The p
field supports the current 256-bit payment hash, but future
specs could add a new variant of different length: in which case,
writers could support both old and new variants, and old readers would
ignore the variant not the correct length.
The d
field allows inline descriptions, but may be insufficient for
complex orders. Thus, the h
field allows a summary: though the method
by which the description is served is as-yet unspecified and will
probably be transport dependent. The h
format could change in the future,
by changing the length, so readers ignore it if it's not 256 bits.
The n
field can be used to explicitly specify the destination node ID,
instead of requiring signature recovery.
The x
field gives warning as to when a payment will be
refused: mainly to avoid confusion. The default was chosen
to be reasonable for most payments and to allow sufficient time for
on-chain payment, if necessary.
The c
field allows a way for the destination node to require a specific
minimum CLTV expiry for its incoming HTLC. Destination nodes may use this
to require a higher, more conservative value than the default one (depending
on their fee estimation policy and their sensitivity to time locks). Note
that remote nodes in the route specify their required cltv_expiry_delta
in the channel_update
message, which they can update at all times.
The f
field allows on-chain fallback; however, this may not make sense for
tiny or time-sensitive payments. It's possible that new
address forms will appear; thus, multiple f
fields (in an implied
preferred order) help with transition, and f
fields with versions 19-31
will be ignored by readers.
The r
field allows limited routing assistance: as specified, it only
allows minimum information to use private channels, however, it could also
assist in future partial-knowledge routing.
Payment descriptions are user-defined and provide a potential avenue for injection attacks: during the processes of both rendering and persistence.
Payment descriptions should always be sanitized before being displayed in HTML/Javascript contexts (or any other dynamically interpreted rendering frameworks). Implementers should be extra perceptive to the possibility of reflected XSS attacks, when decoding and displaying payment descriptions. Avoid optimistically rendering the contents of the payment request until all validation, verification, and sanitization processes have been successfully completed.
Furthermore, consider using prepared statements, input validation, and/or escaping, to protect against injection vulnerabilities in persistence engines that support SQL or other dynamically interpreted querying languages.
Don't be like the school of Little Bobby Tables.
Feature bits allow forward and backward compatibility, and follow the
it's ok to be odd rule. Features appropriate for use in the 9
field
are marked in BOLT 9.
The field is big-endian. The least-significant bit is numbered 0, which is even, and the next most significant bit is numbered 1, which is odd.
Note that the payment_secret
feature prevents probing attacks from nodes
along the path, but only if made compulsory: yet doing so will break
older clients which do not understand the feature. It is compulsory
for basic_mpp
however, as that is also a recent feature, and makes
nodes more vulnerable to probing attacks as there is no lower-bound
on the amount sent.
A writer:
- MUST set the
9
field to a feature vector compliant with the BOLT 9 origin node requirements. - MUST set an
s
field if and only if thepayment_secret
feature is set.
A reader:
- if the feature vector does not set all known, transitive feature dependencies:
- MUST NOT attempt the payment.
- if the
basic_mpp
feature is offered in the invoice:- MAY pay using Basic multi-part payments.
- otherwise:
- MUST NOT use Basic multi-part payments.
These are generally defined by the rest of the Lightning BOLT series,
but it's worth noting that BOLT #4 specifies that the payee SHOULD
accept up to twice the expected amount
, so the payer can make
payments harder to track by adding small variations.
The intent is that the payer recovers the payee's node ID from the
signature, and after checking that conditions such as fees,
expiry, and block timeout are acceptable, attempts a payment. It can use r
fields to
augment its routing information, if necessary to reach the final node.
If the payment succeeds but there is a later dispute, the payer can prove both the signed offer from the payee and the successful payment.
A payer:
- after the
timestamp
plusexpiry
has passed:- SHOULD NOT attempt a payment.
- otherwise:
- if a Lightning payment fails:
- MAY attempt to use the address given in the first
f
field that it understands for payment.
- MAY attempt to use the address given in the first
- if a Lightning payment fails:
- MAY use the sequence of channels, specified by the
r
field, to route to the payee. - SHOULD consider the fee amount and payment timeout before initiating payment.
- SHOULD use the first
p
field that it did NOT skip as the payment hash.
A payee:
- after the
timestamp
plusexpiry
has passed:- SHOULD NOT accept a payment.
https://github.com/rustyrussell/lightning-payencode
NB: all the following examples are signed with priv_key
=e126f68f7eafcc8b74f54d269fe206be715000f94dac067d1c04a8ca3b2db734
. Also, the first 9 examples are legacy: modern invoices have an s
field.
Please make a donation of any amount using payment_hash 0001020304050607080900010203040506070809000102030405060708090102 to me @03e7156ae33b0a208d0744199163177e909e80176e55d97a2f221ede0f934dd9ad
lnbc1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpl2pkx2ctnv5sxxmmwwd5kgetjypeh2ursdae8g6twvus8g6rfwvs8qun0dfjkxaq8rkx3yf5tcsyz3d73gafnh3cax9rn449d9p5uxz9ezhhypd0elx87sjle52x86fux2ypatgddc6k63n7erqz25le42c4u4ecky03ylcqca784w
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hashp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypq
: payment hash 0001020304050607080900010203040506070809000102030405060708090102
d
: short descriptionpl
:data_length
(p
= 1,l
= 31; 1 * 32 + 31 == 63)2pkx2ctnv5sxxmmwwd5kgetjypeh2ursdae8g6twvus8g6rfwvs8qun0dfjkxaq
: 'Please consider supporting this project'
8rkx3yf5tcsyz3d73gafnh3cax9rn449d9p5uxz9ezhhypd0elx87sjle52x86fux2ypatgddc6k63n7erqz25le42c4u4ecky03ylcq
: signatureca784w
: Bech32 checksum- Signature breakdown:
38ec6891345e204145be8a3a99de38e98a39d6a569434e1845c8af7205afcfcc7f425fcd1463e93c32881ead0d6e356d467ec8c02553f9aab15e5738b11f127f
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e62630b25fe64410d00004080c1014181c20240004080c1014181c20240004080c1014181c202404081a1fa83632b0b9b29031b7b739b4b232b91039bab83837b93a34b733903a3434b990383937b532b1ba0
hex of data for signing (prefix + data after separator up to the start of the signature)c3d4e83f646fa79a393d75277b1d858db1d1f7ab7137dcb7835db2ecd518e1c9
hex of SHA256 of the preimage
lnbc2500u1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5xysxxatsyp3k7enxv4jsxqzpuaztrnwngzn3kdzw5hydlzf03qdgm2hdq27cqv3agm2awhz5se903vruatfhq77w3ls4evs3ch9zw97j25emudupq63nyw24cg27h2rspfj9srp
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet2500u
: amount (2500 micro-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...d
: short descriptionq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)xysxxatsyp3k7enxv4js
: '1 cup coffee'
x
: expiry timeqz
:data_length
(q
= 0,z
= 2; 0 * 32 + 2 == 2)pu
: 60 seconds (p
= 1,u
= 28; 1 * 32 + 28 == 60)
aztrnwngzn3kdzw5hydlzf03qdgm2hdq27cqv3agm2awhz5se903vruatfhq77w3ls4evs3ch9zw97j25emudupq63nyw24cg27h2rsp
: signaturefj9srp
: Bech32 checksum- Signature breakdown:
e89639ba6814e36689d4b91bf125f10351b55da057b00647a8dabaeb8a90c95f160f9d5a6e0f79d1fc2b964238b944e2fa4aa677c6f020d466472ab842bd750e
hex of signature data (32-byte r, 32-byte s)1
(int) recovery flag contained insignature
6c6e626332353030750b25fe64410d00004080c1014181c20240004080c1014181c20240004080c1014181c202404081a0a189031bab81031b7b33332b2818020f00
hex of data for signing (prefix + data after separator up to the start of the signature)3cd6ef07744040556e01be64f68fd9e1565fb47d78c42308b1ee005aca5a0d86
hex of SHA256 of the preimage
lnbc2500u1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpquwpc4curk03c9wlrswe78q4eyqc7d8d0xqzpuyk0sg5g70me25alkluzd2x62aysf2pyy8edtjeevuv4p2d5p76r4zkmneet7uvyakky2zr4cusd45tftc9c5fh0nnqpnl2jfll544esqchsrny
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet2500u
: amount (2500 micro-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...d
: short descriptionpq
:data_length
(p
= 1,q
= 0; 1 * 32 + 0 == 32)uwpc4curk03c9wlrswe78q4eyqc7d8d0
: 'ナンセンス 1杯'
x
: expiry timeqz
:data_length
(q
= 0,z
= 2; 0 * 32 + 2 == 2)pu
: 60 seconds (p
= 1,u
= 28; 1 * 32 + 28 == 60)
yk0sg5g70me25alkluzd2x62aysf2pyy8edtjeevuv4p2d5p76r4zkmneet7uvyakky2zr4cusd45tftc9c5fh0nnqpnl2jfll544esq
: signaturechsrny
: Bech32 checksum- Signature breakdown:
259f04511e7ef2aa77f6ff04d51b4ae9209504843e5ab9672ce32a153681f687515b73ce57ee309db588a10eb8e41b5a2d2bc17144ddf398033faa49ffe95ae6
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332353030750b25fe64410d00004080c1014181c20240004080c1014181c20240004080c1014181c202404081a1071c1c571c1d9f1c15df1c1d9f1c15c9018f34ed798020f0
hex of data for signing (prefix + data after separator up to the start of the signature)197a3061f4f333d86669b8054592222b488f3c657a9d3e74f34f586fb3e7931c
hex of SHA256 of the preimage
lnbc20m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqscc6gd6ql3jrc5yzme8v4ntcewwz5cnw92tz0pc8qcuufvq7khhr8wpald05e92xw006sq94mg8v2ndf4sefvf9sygkshp5zfem29trqq2yxxz7
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...h
: tagged field: hash of descriptionp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)8yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqs
: SHA256 of 'One piece of chocolate cake, one icecream cone, one pickle, one slice of swiss cheese, one slice of salami, one lollypop, one piece of cherry pie, one sausage, one cupcake, and one slice of watermelon'
cc6gd6ql3jrc5yzme8v4ntcewwz5cnw92tz0pc8qcuufvq7khhr8wpald05e92xw006sq94mg8v2ndf4sefvf9sygkshp5zfem29trqq
: signature2yxxz7
: Bech32 checksum- Signature breakdown:
c63486e81f8c878a105bc9d959af1973854c4dc552c4f0e0e0c7389603d6bdc67707bf6be992a8ce7bf50016bb41d8a9b5358652c4960445a170d049ced4558c
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332306d0b25fe64410d00004080c1014181c20240004080c1014181c20240004080c1014181c202404082e1a1c92db7b3f161a001b7689049eea2701b46f8db7513629edf2408fac7eaedc60800
hex of data for signing (prefix + data after separator up to the start of the signature)b6025e8a10539dddbcbe6840a9650707ae3f147b8dcfda338561ada710508916
hex of SHA256 of the preimage
lntb20m1pvjluezhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqfpp3x9et2e20v6pu37c5d9vax37wxq72un98kmzzhznpurw9sgl2v0nklu2g4d0keph5t7tj9tcqd8rexnd07ux4uv2cjvcqwaxgj7v4uwn5wmypjd5n69z2xm3xgksg28nwht7f6zspwp3f9t
Breakdown:
lntb
: prefix, Lightning on Bitcoin testnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)h
: tagged field: hash of description...p
: payment hash...f
: tagged field: fallback addresspp
:data_length
(p
= 1; 1 * 32 + 1 == 33)3
= 17, so P2PKH addressx9et2e20v6pu37c5d9vax37wxq72un98
: 160-bit P2PKH address
kmzzhznpurw9sgl2v0nklu2g4d0keph5t7tj9tcqd8rexnd07ux4uv2cjvcqwaxgj7v4uwn5wmypjd5n69z2xm3xgksg28nwht7f6zsp
: signaturewp3f9t
: Bech32 checksum- Signature breakdown:
b6c42b8a61e0dc5823ea63e76ff148ab5f6c86f45f9722af0069c7934daff70d5e315893300774c897995e3a7476c8193693d144a36e2645a0851e6ebafc9d0a
hex of signature data (32-byte r, 32-byte s)1
(int) recovery flag contained insignature
6c6e746232306d0b25fe64570d0e496dbd9f8b0d000dbb44824f751380da37c6dba89b14f6f92047d63f576e304021a000081018202830384048000810182028303840480008101820283038404808102421898b95ab2a7b341e47d8a34ace9a3e7181e5726538
hex of data for signing (prefix + data after separator up to the start of the signature)00c17b39642becc064615ef196a6cc0cce262f1d8dde7b3c23694aeeda473abe
hex of SHA256 of the preimage
On mainnet, with fallback address 1RustyRX2oai4EYYDpQGWvEL62BBGqN9T with extra routing info to go via nodes 029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255 then 039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255
lnbc20m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqsfpp3qjmp7lwpagxun9pygexvgpjdc4jdj85fr9yq20q82gphp2nflc7jtzrcazrra7wwgzxqc8u7754cdlpfrmccae92qgzqvzq2ps8pqqqqqqpqqqqq9qqqvpeuqafqxu92d8lr6fvg0r5gv0heeeqgcrqlnm6jhphu9y00rrhy4grqszsvpcgpy9qqqqqqgqqqqq7qqzqj9n4evl6mr5aj9f58zp6fyjzup6ywn3x6sk8akg5v4tgn2q8g4fhx05wf6juaxu9760yp46454gpg5mtzgerlzezqcqvjnhjh8z3g2qqdhhwkj
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...h
: tagged field: hash of description...f
: tagged field: fallback addresspp
:data_length
(p
= 1; 1 * 32 + 1 == 33)3
= 17, so P2PKH addressqjmp7lwpagxun9pygexvgpjdc4jdj85f
: 160-bit P2PKH address
r
: tagged field: route information9y
:data_length
(9
= 5,y
= 4; 5 * 32 + 4 == 164)q20q82gphp2nflc7jtzrcazrra7wwgzxqc8u7754cdlpfrmccae92qgzqvzq2ps8pqqqqqqpqqqqq9qqqvpeuqafqxu92d8lr6fvg0r5gv0heeeqgcrqlnm6jhphu9y00rrhy4grqszsvpcgpy9qqqqqqgqqqqq7qqzq
:- pubkey:
029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255
short_channel_id
: 0102030405060708fee_base_msat
: 1 millisatoshifee_proportional_millionths
: 20cltv_expiry_delta
: 3- pubkey:
039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255
short_channel_id
: 030405060708090afee_base_msat
: 2 millisatoshifee_proportional_millionths
: 30cltv_expiry_delta
: 4
- pubkey:
j9n4evl6mr5aj9f58zp6fyjzup6ywn3x6sk8akg5v4tgn2q8g4fhx05wf6juaxu9760yp46454gpg5mtzgerlzezqcqvjnhjh8z3g2qq
: signaturedhhwkj
: Bech32 checksum- Signature breakdown:
91675cb3fad8e9d915343883a49242e074474e26d42c7ed914655689a8074553733e8e4ea5ce9b85f69e40d755a55014536b12323f8b220600c94ef2b9c51428
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332306d0b25fe64410d00004080c1014181c20240004080c1014181c20240004080c1014181c202404082e1a1c92db7b3f161a001b7689049eea2701b46f8db7513629edf2408fac7eaedc60824218825b0fbee0f506e4ca122326620326e2b26c8f448ca4029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255010203040506070800000001000000140003039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255030405060708090a000000020000001e00040
hex of data for signing (prefix + data after separator up to the start of the signature)ff68246c5ad4b48c90cf8ff3b33b5cea61e62f08d0e67910ffdce1edecade71b
hex of SHA256 of the preimage
lnbc20m1pvjluezhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqfppj3a24vwu6r8ejrss3axul8rxldph2q7z9kmrgvr7xlaqm47apw3d48zm203kzcq357a4ls9al2ea73r8jcceyjtya6fu5wzzpe50zrge6ulk4nvjcpxlekvmxl6qcs9j3tz0469gq5g658y
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)h
: tagged field: hash of description...p
: payment hash...f
: tagged field: fallback addresspp
:data_length
(p
= 1; 1 * 32 + 1 == 33)j
= 18, so P2SH address3a24vwu6r8ejrss3axul8rxldph2q7z9
: 160-bit P2SH address
kmrgvr7xlaqm47apw3d48zm203kzcq357a4ls9al2ea73r8jcceyjtya6fu5wzzpe50zrge6ulk4nvjcpxlekvmxl6qcs9j3tz0469gq
: signature5g658y
: Bech32 checksum- Signature breakdown:
b6c6860fc6ff41bafba1745b538b6a7c6c2c0234f76bf817bf567be88cf2c632492c9dd279470841cd1e21a33ae7ed59b25809bf9b3366fe81881651589f5d15
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332306d0b25fe64570d0e496dbd9f8b0d000dbb44824f751380da37c6dba89b14f6f92047d63f576e304021a000081018202830384048000810182028303840480008101820283038404808102421947aaab1dcd0cf990e108f4dcf9c66fb437503c228
hex of data for signing (prefix + data after separator up to the start of the signature)64f1ff500bcc62a1b211cd6db84a1d93d1f77c6a132904465b6ff912420176be
hex of SHA256 of the preimage
lnbc20m1pvjluezhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqfppqw508d6qejxtdg4y5r3zarvary0c5xw7kepvrhrm9s57hejg0p662ur5j5cr03890fa7k2pypgttmh4897d3raaq85a293e9jpuqwl0rnfuwzam7yr8e690nd2ypcq9hlkdwdvycqa0qza8
lnbc
: prefix, Lightning on Bitcoin mainnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)h
: tagged field: hash of description...p
: payment hash...f
: tagged field: fallback addresspp
:data_length
(p
= 1; 1 * 32 + 1 == 33)q
: 0, so witness version 0w508d6qejxtdg4y5r3zarvary0c5xw7k
: 160 bits = P2WPKH.
epvrhrm9s57hejg0p662ur5j5cr03890fa7k2pypgttmh4897d3raaq85a293e9jpuqwl0rnfuwzam7yr8e690nd2ypcq9hlkdwdvycq
: signaturea0qza8
: Bech32 checksum- Signature breakdown:
c8583b8f65853d7cc90f0eb4ae0e92a606f89caf4f7d65048142d7bbd4e5f3623ef407a75458e4b20f00efbc734f1c2eefc419f3a2be6d51038016ffb35cd613
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332306d0b25fe64570d0e496dbd9f8b0d000dbb44824f751380da37c6dba89b14f6f92047d63f576e304021a00008101820283038404800081018202830384048000810182028303840480810242103a8f3b740cc8cb6a2a4a0e22e8d9d191f8a19deb0
hex of data for signing (prefix + data after separator up to the start of the signature)b3df27aaa01d891cc9de272e7609557bdf4bd6fd836775e4470502f71307b627
hex of SHA256 of the preimage
On mainnet, with fallback (P2WSH) address bc1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3qccfmv3
lnbc20m1pvjluezhp58yjmdan79s6qqdhdzgynm4zwqd5d7xmw5fk98klysy043l2ahrqspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqfp4qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q28j0v3rwgy9pvjnd48ee2pl8xrpxysd5g44td63g6xcjcu003j3qe8878hluqlvl3km8rm92f5stamd3jw763n3hck0ct7p8wwj463cql26ava
lnbc
: prefix, Lightning on Bitcoin mainnet20m
: amount (20 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)h
: tagged field: hash of description...p
: payment hash...f
: tagged field: fallback addressp4
:data_length
(p
= 1,4
= 21; 1 * 32 + 21 == 53)q
: 0, so witness version 0rp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q
: 260 bits = P2WSH.
28j0v3rwgy9pvjnd48ee2pl8xrpxysd5g44td63g6xcjcu003j3qe8878hluqlvl3km8rm92f5stamd3jw763n3hck0ct7p8wwj463cq
: signaturel26ava
: Bech32 checksum- Signature breakdown:
51e4f6446e410a164a6da9f39507e730c26241b4456ab6ea28d1b12c71ef8ca20c9cfe3dffc07d9f8db671ecaa4d20beedb193bda8ce37c59f85f82773a55d47
hex of signature data (32-byte r, 32-byte s)0
(int) recovery flag contained insignature
6c6e626332306d0b25fe64570d0e496dbd9f8b0d000dbb44824f751380da37c6dba89b14f6f92047d63f576e304021a00008101820283038404800081018202830384048000810182028303840480810243500c318a1e0a628b34025e8c9019ab6d09b64c2b3c66a693d0dc63194b02481931000
hex of data for signing (prefix + data after separator up to the start of the signature)399a8b167029fda8564fd2e99912236b0b8017e7d17e416ae17307812c92cf42
hex of SHA256 of the preimage
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
Breakdown:
lnbc
: prefix, Lightning on bitcoin mainnet9678785340p
: amount (9678785340 pico-bitcoin = 967878534 milli satoshi)1
: Bech32 separatorpwmna7l
: timestamp (1572468703)p
: payment hash.p5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)gc3xfm08u9qy06djf8dfflhugl6p7lgza6dsjxq454gxhj9t7a0s
: payment hash 462264ede7e14047e9b249da94fefc47f41f7d02ee9b091815a5506bc8abf75f
d
: short description8d
:data_length
(8
= 7,d
= 13; 7 * 32 + 13 == 237)gfkx7cmtwd68yetpd5s9xar0wfjn5gpc8qhrsdfq24f5ggrxdaezqsnvda3kkum5wfjkzmfqf3jkgem9wgsyuctwdus9xgrcyqcjcgpzgfskx6eqf9hzqnteypzxz7fzypfhg6trddjhygrcyqezcgpzfysywmm5ypxxjemgw3hxjmn8yptk7untd9hxwg3q2d6xjcmtv4ezq7pqxgsxzmnyyqcjqmt0wfjjq6t5v4khx
: 'Blockstream Store: 88.85 USD for Blockstream Ledger Nano S x 1, "Back In My Day" Sticker x 2, "I Got Lightning Working" Sticker x 2 and 1 more items'
x
: expiry timeqy
:data_length
(q
= 0,y
= 2; 0 * 32 + 4 == 4)jw5q
: 604800 seconds (j
= 18,w
= 14,5
= 20,q
= 0; 18 * 32^3 + 14 * 32^2 + 20 * 32 + 0 == 604800)
c
:min_final_cltv_expiry
qp
:data_length
(q
= 0,p
= 1; 0 * 32 + 1 == 1)2
: min_final_cltv_expiry = 10
r
: tagged field: route informationzj
:data_length
(z
= 2,j
= 18; 2 * 32 + 18 == 82)q0gxwkzc8w6323m55m4jyxcjwmy7stt9hwkwe2qxmy8zpsgg7jcuwz87fcqqeuqqqyqqqqlgqqqqn3qq9q
:- pubkey: 03d06758583bb5154774a6eb221b1276c9e82d65bbaceca806d90e20c108f4b1c7
- short_channel_id: 589390x3312x1
- fee_base_msat = 1000
- fee_proportional_millionths = 2500
- cltv_expiry_delta = 40
n07ytgrxxzad9hc4xt3mawjjt8znfv8xzscs7007v9gh9j569lencxa8xeujzkxs0uamak9aln6ez02uunw6rd2ht2sqe4hz8thcdagp
: signatureleym0j
: Bech32 checksum
Please send $30 for coffee beans to the same peer, which supports features 9, 15 and 99, using secret 0x1111111111111111111111111111111111111111111111111111111111111111
lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdeessp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs9q5sqqqqqqqqqqqqqqqpqsq67gye39hfg3zd8rgc80k32tvy9xk2xunwm5lzexnvpx6fd77en8qaq424dxgt56cag2dpt359k3ssyhetktkpqh24jqnjyw6uqd08sgptq44qu
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet25m
: amount (25 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...d
: short descriptionq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)vdhkven9v5sxyetpdees
: 'coffee beans'
s
: payment secretp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs
: 0x1111111111111111111111111111111111111111111111111111111111111111
9
: featuresq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)sqqqqqqqqqqqqqqqpqsq
: b1000....00001000001000000000
67gye39hfg3zd8rgc8032tvy9xk2xunwm5lzexnvpx6fd77en8qaq424dxgt56cag2dpt359k3ssyhetktkpqh24jqnjyw6uqd08sgp
: signaturetq44qu
: Bech32 checksum
LNBC25M1PVJLUEZPP5QQQSYQCYQ5RQWZQFQQQSYQCYQ5RQWZQFQQQSYQCYQ5RQWZQFQYPQDQ5VDHKVEN9V5SXYETPDEESSP5ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYG3ZYGS9Q5SQQQQQQQQQQQQQQQPQSQ67GYE39HFG3ZD8RGC80K32TVY9XK2XUNWM5LZEXNVPX6FD77EN8QAQ424DXGT56CAG2DPT359K3SSYHETKTKPQH24JQNJYW6UQD08SGPTQ44QU
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
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet25m
: amount (25 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...d
: short descriptionq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)vdhkven9v5sxyetpdees
: 'coffee beans'
s
: payment secretp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs
: 0x1111111111111111111111111111111111111111111111111111111111111111
9
: featuresq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)sqqqqqqqqqqqqqqqpqsq
: b1000....00001000001000000000
2
: unknown fieldqr
:data_length
(q
= 0,r
= 3; 0 * 32 + 3 == 3)qqq
: zeroes
f
: tagged field: fallback addresspp
:data_length
(p
= 1,p
= 1; 1 * 32 + 1 == 33)nqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
: fallback address type 19 (ignored)
p
: payment hashpn
:data_length
(p
= 1,n
= 19; 1 * 32 + 19 == 51) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
p
: payment hashp4
:data_length
(p
= 1,4
= 21; 1 * 32 + 21 == 53) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
h
: hash of descriptionpn
:data_length
(p
= 1,n
= 19; 1 * 32 + 19 == 51) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
h
: hash of descriptionp4
:data_length
(p
= 1,4
= 21; 1 * 32 + 21 == 53) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
s
: payment secretpn
:data_length
(p
= 1,n
= 19; 1 * 32 + 19 == 51) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
s
: payment secretp4
:data_length
(p
= 1,4
= 21; 1 * 32 + 21 == 53) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
n
: node idp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
n
: node idpk
:data_length
(p
= 1,k
= 22; 1 * 32 + 22 == 54) (ignored)qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
2jxxfsnucm4jf4zwtznpaxphce606fvhvje5x7d4gw7n73994hgs7nteqvenq8a4ml8aqtchv5d9pf7l558889hp4yyrqv6a7zpq9fgp
: signatureskqhza
: Bech32 checksum
lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdeessp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs9q4psqqqqqqqqqqqqqqqpqsqq40wa3khl49yue3zsgm26jrepqr2eghqlx86rttutve3ugd05em86nsefzh4pfurpd9ek9w2vp95zxqnfe2u7ckudyahsa52q66tgzcp6t2dyk
Breakdown:
lnbc
: prefix, Lightning on Bitcoin mainnet25m
: amount (25 milli-bitcoin)1
: Bech32 separatorpvjluez
: timestamp (1496314658)p
: payment hash...d
: short descriptionq5
:data_length
(q
= 0,5
= 20; 0 * 32 + 20 == 20)vdhkven9v5sxyetpdees
: 'coffee beans'
s
: payment secretp5
:data_length
(p
= 1,5
= 20; 1 * 32 + 20 == 52)zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs
: 0x1111111111111111111111111111111111111111111111111111111111111111
9
: featuresq4
:data_length
(q
= 0,4
= 21; 0 * 32 + 21 == 21)psqqqqqqqqqqqqqqqpqsqq
: b000011000....00001000001000000000
40wa3khl49yue3zsgm26jrepqr2eghqlx86rttutve3ugd05em86nsefzh4pfurpd9ek9w2vp95zxqnfe2u7ckudyahsa52q66tgzcp
: signature6t2dyk
: Bech32 checksum
lnbc2500u1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpquwpc4curk03c9wlrswe78q4eyqc7d8d0xqzpuyk0sg5g70me25alkluzd2x62aysf2pyy8edtjeevuv4p2d5p76r4zkmneet7uvyakky2zr4cusd45tftc9c5fh0nnqpnl2jfll544esqchsrnt
pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpquwpc4curk03c9wlrswe78q4eyqc7d8d0xqzpuyk0sg5g70me25alkluzd2x62aysf2pyy8edtjeevuv4p2d5p76r4zkmneet7uvyakky2zr4cusd45tftc9c5fh0nnqpnl2jfll544esqchsrny
LNBC2500u1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpquwpc4curk03c9wlrswe78q4eyqc7d8d0xqzpuyk0sg5g70me25alkluzd2x62aysf2pyy8edtjeevuv4p2d5p76r4zkmneet7uvyakky2zr4cusd45tftc9c5fh0nnqpnl2jfll544esqchsrny
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