ISRC USQX91801345
Verified recording
USQX91801345 is “Tosca, Act II: Vissi d'arte, vissi d'amore” by Giacomo Puccini,
registered on the CopyrightChains blockchain with CopyrightID
0xde2e4f3ff0df2174999e2ab91c5c0ed6cf535d88b51d9f13427641e7e423eea5 and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91801345.
Recording identifiers
- ISRC
- USQX91801345
- Title
- Tosca, Act II: Vissi d'arte, vissi d'amore
- Artist
- Giacomo Puccini
- CopyrightID (CopyrightChains transaction hash)
0xde2e4f3ff0df2174999e2ab91c5c0ed6cf535d88b51d9f13427641e7e423eea5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:267a79bbed17a5b6f605cd31ae4436494763747eada6d4d674b373e733dc9d14- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91801345
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Tosca, Act II: Vissi d'arte, vissi d'amore · Machine-readable JSON-LD