ISRC USB8U1071172
Verified recording
USB8U1071172 is “Les contes d'Hoffmann (The Tales of Hoffmann)*: Act II: Entr'acte and barcarolle” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0x7522546d46112765d136f7c77a20ca7d33cb13379b5bcde3fcd089dfb78418e0 and independently timestamped
in Bitcoin block 957124 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1071172.
Recording identifiers
- ISRC
- USB8U1071172
- Title
- Les contes d'Hoffmann (The Tales of Hoffmann)*: Act II: Entr'acte and barcarolle
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0x7522546d46112765d136f7c77a20ca7d33cb13379b5bcde3fcd089dfb78418e0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:53:27+00:00
- Bitcoin block
- 957124
- Canonical record hash
sha256:031a9f2ddfebb5910b7523928bf721b3ae5d5ea08ad52499d20db360d7ee2e94- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1071172
- Bitcoin block existence check
- https://blockstream.info/api/block/957124
Full record
Track page: Les contes d'Hoffmann (The Tales of Hoffmann)*: Act II: Entr'acte and barcarolle · Machine-readable JSON-LD