ISRC NLA508543640
Verified recording
NLA508543640 is “Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle)” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0x36e8b80ccb14be106b8f45780f8d7660b5363887b7395d623563758aa24ff991 and independently timestamped
in Bitcoin block 960225 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508543640.
Recording identifiers
- ISRC
- NLA508543640
- Title
- Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle)
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0x36e8b80ccb14be106b8f45780f8d7660b5363887b7395d623563758aa24ff991
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:04:30+00:00
- Bitcoin block
- 960225
- Canonical record hash
sha256:bd3ddae0fb7ef9783e0f45b802766025d259578f1e67a7e220cfb2ee11fff1e8- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508543640
- Bitcoin block existence check
- https://blockstream.info/api/block/960225
Full record
Track page: Les Contes d'Hoffmann / Act 4: Entr'acte (Barcarolle) · Machine-readable JSON-LD