ISRC USBC10402474
Verified recording
USBC10402474 is “Tosca (1909 Recording): Act III: E lucevan le stelle” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0x3a9dd76486b14f9ec73bcc6aa8d868dfea3c0cb362f7c7e096e0f267608cfd6d and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402474.
Recording identifiers
- ISRC
- USBC10402474
- Title
- Tosca (1909 Recording): Act III: E lucevan le stelle
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0x3a9dd76486b14f9ec73bcc6aa8d868dfea3c0cb362f7c7e096e0f267608cfd6d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:e343e85e776d29be0042fbe7837c7eee0f56c89e35643236afbabfedcc6b267a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402474
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Tosca (1909 Recording): Act III: E lucevan le stelle · Machine-readable JSON-LD