ISRC DEF058631233
Verified recording
DEF058631233 is “Les Contes d'Hoffmann / Act 1: Ha! ha! ha! Monsieur aime donc quelquefois?” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0x639f691fe3617ba9b734d3b5b6699082b97df905cf36b240a9c1b112ae17e3bc and independently timestamped
in Bitcoin block 957034 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058631233.
Recording identifiers
- ISRC
- DEF058631233
- Title
- Les Contes d'Hoffmann / Act 1: Ha! ha! ha! Monsieur aime donc quelquefois?
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0x639f691fe3617ba9b734d3b5b6699082b97df905cf36b240a9c1b112ae17e3bc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T11:52:37+00:00
- Bitcoin block
- 957034
- Canonical record hash
sha256:c96c0456779119745a9c51258fb594222e9a1c2f76f985d64bb499a519a36c9c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058631233
- Bitcoin block existence check
- https://blockstream.info/api/block/957034
Full record
Track page: Les Contes d'Hoffmann / Act 1: Ha! ha! ha! Monsieur aime donc quelquefois? · Machine-readable JSON-LD