ISRC NLA508330109
Verified recording
NLA508330109 is “Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle)” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0x580d9f3236df181f9fa71932e9e231d95ae1d4d8428b49114b89059e92f535f7 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508330109.
Recording identifiers
- ISRC
- NLA508330109
- Title
- Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle)
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0x580d9f3236df181f9fa71932e9e231d95ae1d4d8428b49114b89059e92f535f7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:93b04d4db091cf5414981b032e6656f24aba688142312044353cc393befbed8a- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508330109
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle) · Machine-readable JSON-LD