4 releases
0.2.1 | Apr 13, 2023 |
---|---|
0.2.0 | Feb 24, 2023 |
0.1.1 | Feb 14, 2023 |
0.1.0 | Feb 14, 2023 |
#22 in #attestation
115 downloads per month
Used in 2 crates
(via nostr)
11KB
177 lines
Proof of concept implementation of Nostr NIP-03 OpenTimestamps Attestations for Events
Usage
let mut event_json = serde_json::json!(
{
"id":"2be17aa3031bdcb006f0fce80c146dea9c1c0268b0af2398bb673365c6444d45"
// other event fields as defined in https://github.com/nostr-protocol/nips/blob/master/01.md#events-and-signatures
}
);
let event_id = event_json["id"].as_str().unwrap();
let ots = nostr_ots::timestamp_event(event_id).unwrap();
event_json["ots"] = serde_json::Value::String(ots);
Test
Test implementation against OpenTimestamps python client
$ echo "Proof of concept implementation of NIP-03" > example
$ shasum -a 256 example
d6f3c7616621ea55fa99444dc82ce7eafed2e71352a0890882b2e42285b90724 example
$ cargo run --example stamp -- d6f3c7616621ea55fa99444dc82ce7eafed2e71352a0890882b2e42285b90724 | base64 --decode >example.ots
$ ots info example.ots
File sha256 hash: d6f3c7616621ea55fa99444dc82ce7eafed2e71352a0890882b2e42285b90724
Timestamp:
-> append 35abd6957bb035a904df2a74d1287c56
sha256
prepend 63ebc438
append ba3242b113ee37d7
verify PendingAttestation('https://bob.btc.calendar.opentimestamps.org')
-> append 77cf7970f11e52ec3531b27b44d856e7
sha256
prepend 63ebc439
append bd08b13e2e6f49f5
verify PendingAttestation('https://btc.calendar.catallaxy.com')
-> append a2231bf8052e0f79947121c687b3f97e
sha256
append b80ffca6f3ea6ad3e5a4bb0b0be819ba4753bc5a3a8987c46fa0fde76847a520
sha256
prepend 63ebc438
append cf1c91194578d4e3
verify PendingAttestation('https://finney.calendar.eternitywall.com')
-> append ab64d01a5ebe068d205024e098a69feb
sha256
prepend 1153c8b5ab758ff941eaf6507c3e774abd58a81089e86c8bbec137a0e36c6680
sha256
prepend 63ebc438
append 59e9634366c30207
verify PendingAttestation('https://alice.btc.calendar.opentimestamps.org')
Used by
Dependencies
~6–8MB
~142K SLoC