ISRC DEF057502680
Verified recording
DEF057502680 is “Lasse! comment oublieray” by Guillaume de Machaut,
registered on the CopyrightChains blockchain with CopyrightID
0x6491a1a672daf237e5fa0969a16c2134c9870fd5dbe3323596966c506aa5d1a2 and independently timestamped
in Bitcoin block 960163 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057502680.
Recording identifiers
- ISRC
- DEF057502680
- Title
- Lasse! comment oublieray
- Artist
- Guillaume de Machaut
- CopyrightID (CopyrightChains transaction hash)
0x6491a1a672daf237e5fa0969a16c2134c9870fd5dbe3323596966c506aa5d1a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T23:20:38+00:00
- Bitcoin block
- 960163
- Canonical record hash
sha256:e36e945485849cc6c6ef8102327ad504d5e40c5f2cd512881702be8aa28bdc45- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057502680
- Bitcoin block existence check
- https://blockstream.info/api/block/960163
Full record
Track page: Lasse! comment oublieray · Machine-readable JSON-LD