ISRC GBBBC2201438
Verified recording
GBBBC2201438 is “Mass for Four Voices: IIIa. Credo” by William Byrd,
registered on the CopyrightChains blockchain with CopyrightID
0x639723314101c1641797c5eb25415b37db4d5c6867d7193b536595016739df52 and independently timestamped
in Bitcoin block 960108 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201438.
Recording identifiers
- ISRC
- GBBBC2201438
- Title
- Mass for Four Voices: IIIa. Credo
- Artist
- William Byrd
- CopyrightID (CopyrightChains transaction hash)
0x639723314101c1641797c5eb25415b37db4d5c6867d7193b536595016739df52
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T13:09:35+00:00
- Bitcoin block
- 960108
- Canonical record hash
sha256:81382422ac8f17ddd2986bdb0fb430633d1cfe973c306bbb29ecd0b6bde49aa8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201438
- Bitcoin block existence check
- https://blockstream.info/api/block/960108
Full record
Track page: Mass for Four Voices: IIIa. Credo · Machine-readable JSON-LD