ISRC ITDQ70656295
Verified recording
ITDQ70656295 is “Mass for Four Voices: Agnus Dei” by William Byrd,
registered on the CopyrightChains blockchain with CopyrightID
0xac0dbd408876596cd8bbad2867d34cb1ed61294a86cbec621b136559940b72a5 and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ70656295.
Recording identifiers
- ISRC
- ITDQ70656295
- Title
- Mass for Four Voices: Agnus Dei
- Artist
- William Byrd
- CopyrightID (CopyrightChains transaction hash)
0xac0dbd408876596cd8bbad2867d34cb1ed61294a86cbec621b136559940b72a5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:c2a2f22445ed12bd52a05a47d2fc12120bcea03cd800a1e7540097d18db35864- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ70656295
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Mass for Four Voices: Agnus Dei · Machine-readable JSON-LD