ISRC DEF057930728
Verified recording
DEF057930728 is “Tosca, Act II: Ha più forte sapore – Spoletta è giunto” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x9a8b77f4edfde4cc05d1a1d135af67ebe517b40f897aa4dfa054ed3208c1a9fe and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057930728.
Recording identifiers
- ISRC
- DEF057930728
- Title
- Tosca, Act II: Ha più forte sapore – Spoletta è giunto
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x9a8b77f4edfde4cc05d1a1d135af67ebe517b40f897aa4dfa054ed3208c1a9fe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:88c1d1829484334a78145aecdc11ac571900875821c5fe0904d7a8a027ed7c42- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057930728
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Tosca, Act II: Ha più forte sapore – Spoletta è giunto · Machine-readable JSON-LD