ISRC DEF057730531
Verified recording
DEF057730531 is “La Fanciulla del West / Act 1: Mister Johnson, un valzer?” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0xf39cd5d12261ecc8d52e167bd8f3bfc0f8e5a1acf17013fe68047f9fea96c877 and independently timestamped
in Bitcoin block 957043 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730531.
Recording identifiers
- ISRC
- DEF057730531
- Title
- La Fanciulla del West / Act 1: Mister Johnson, un valzer?
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0xf39cd5d12261ecc8d52e167bd8f3bfc0f8e5a1acf17013fe68047f9fea96c877
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T13:52:39+00:00
- Bitcoin block
- 957043
- Canonical record hash
sha256:2874606c401759385da0a6860c923fc9318cf6cafcc027b2b2e7546afc6f047b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730531
- Bitcoin block existence check
- https://blockstream.info/api/block/957043
Full record
Track page: La Fanciulla del West / Act 1: Mister Johnson, un valzer? · Machine-readable JSON-LD