ISRC DEF057930739
Verified recording
DEF057930739 is “Tosca / Act 1: "Recondita armonia"” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0xfe4818aec9a6bb61f7d340c89abd45d68085644ef5461a6e5fb3a766d28c3d2b and independently timestamped
in Bitcoin block 960468 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057930739.
Recording identifiers
- ISRC
- DEF057930739
- Title
- Tosca / Act 1: "Recondita armonia"
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0xfe4818aec9a6bb61f7d340c89abd45d68085644ef5461a6e5fb3a766d28c3d2b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T21:25:57+00:00
- Bitcoin block
- 960468
- Canonical record hash
sha256:c20707528cccf02f794a0235854c7a2a67a13a3d2c5ba1fe3566ca74eb57be69- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057930739
- Bitcoin block existence check
- https://blockstream.info/api/block/960468
Full record
Track page: Tosca / Act 1: "Recondita armonia" · Machine-readable JSON-LD