ISRC USX761703030
Verified recording
USX761703030 is “Tosca” by Maria Callas,
registered on the CopyrightChains blockchain with CopyrightID
0xc5c15f8e1b6d7cd57141b7919ba6d75fafe56169e0438a7d046a20ae8674e65b and independently timestamped
in Bitcoin block 960203 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761703030.
Recording identifiers
- ISRC
- USX761703030
- Title
- Tosca
- Artist
- Maria Callas
- CopyrightID (CopyrightChains transaction hash)
0xc5c15f8e1b6d7cd57141b7919ba6d75fafe56169e0438a7d046a20ae8674e65b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T03:35:13+00:00
- Bitcoin block
- 960203
- Canonical record hash
sha256:46394e11361b3e28d03a3f7097249bdd3c1f66555e64d21738681d094052a0cf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761703030
- Bitcoin block existence check
- https://blockstream.info/api/block/960203