ISRC DEF077505250
Verified recording
DEF077505250 is “Offenbach: La belle Hélène - Sung in German: Nun, ich bin Ajax der Erste” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0xda2e28f1fb763fe5a1ee3d654b4ee8165c09ec28e376f7271efd2b819776585d and independently timestamped
in Bitcoin block 960177 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF077505250.
Recording identifiers
- ISRC
- DEF077505250
- Title
- Offenbach: La belle Hélène - Sung in German: Nun, ich bin Ajax der Erste
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0xda2e28f1fb763fe5a1ee3d654b4ee8165c09ec28e376f7271efd2b819776585d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T00:21:01+00:00
- Bitcoin block
- 960177
- Canonical record hash
sha256:b8784c6cc3101700d98e22e1558bdf51be1218da838f3674871098f0728a7f55- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF077505250
- Bitcoin block existence check
- https://blockstream.info/api/block/960177
Full record
Track page: Offenbach: La belle Hélène - Sung in German: Nun, ich bin Ajax der Erste · Machine-readable JSON-LD