ISRC GBAYD7700061
Verified recording
GBAYD7700061 is “Joâo IV of Portugal: Crux fidelis” by Tomás Luis de Victoria,
registered on the CopyrightChains blockchain with CopyrightID
0x91a57868fa0b99cb20ac4105bb191b13fd3a7a288ee9dd44d03e658fcb45ab93 and independently timestamped
in Bitcoin block 960288 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7700061.
Recording identifiers
- ISRC
- GBAYD7700061
- Title
- Joâo IV of Portugal: Crux fidelis
- Artist
- Tomás Luis de Victoria
- CopyrightID (CopyrightChains transaction hash)
0x91a57868fa0b99cb20ac4105bb191b13fd3a7a288ee9dd44d03e658fcb45ab93
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:41:38+00:00
- Bitcoin block
- 960288
- Canonical record hash
sha256:5b0b96f3ed3cfc80aa2a3447ed9cfe1197ec953ff655e4da22200ff96175366a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7700061
- Bitcoin block existence check
- https://blockstream.info/api/block/960288
Full record
Track page: Joâo IV of Portugal: Crux fidelis · Machine-readable JSON-LD