ISRC DEF057931043
Verified recording
DEF057931043 is “Werther / Act 4: "Ah! Ses yeux se ferment.."” by Jules Massenet,
registered on the CopyrightChains blockchain with CopyrightID
0x663ab5ac903422d089c7723247f33182af995d1f0f9f3f3ef67252a5569ee903 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057931043.
Recording identifiers
- ISRC
- DEF057931043
- Title
- Werther / Act 4: "Ah! Ses yeux se ferment.."
- Artist
- Jules Massenet
- CopyrightID (CopyrightChains transaction hash)
0x663ab5ac903422d089c7723247f33182af995d1f0f9f3f3ef67252a5569ee903
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:2619ffffa1ce5d20d5f9e4717c37207e14c7f81dbe0822ed1fce768e70e3777b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057931043
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Werther / Act 4: "Ah! Ses yeux se ferment.." · Machine-readable JSON-LD