ISRC GBLLH2377618
Verified recording
GBLLH2377618 is “Mass for Four Voices: VI. Agnus Dei” by William Byrd,
registered on the CopyrightChains blockchain with CopyrightID
0x92ad45b397587426836ff5a53dea56fd5f4e159b6eadaefb58c989c1eefebd1d and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2377618.
Recording identifiers
- ISRC
- GBLLH2377618
- Title
- Mass for Four Voices: VI. Agnus Dei
- Artist
- William Byrd
- CopyrightID (CopyrightChains transaction hash)
0x92ad45b397587426836ff5a53dea56fd5f4e159b6eadaefb58c989c1eefebd1d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:2699ced0593065599605eb30477e607a0d84d20591db1506093fd9ad3983afea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2377618
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Mass for Four Voices: VI. Agnus Dei · Machine-readable JSON-LD