ISRC GBLLH1333804
Verified recording
GBLLH1333804 is “Quomodo cantabimus” by William Byrd,
registered on the CopyrightChains blockchain with CopyrightID
0x778de8382fa66fb510d183b67981e0ef95f166814e3b40ad2104e796e767e631 and independently timestamped
in Bitcoin block 960497 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1333804.
Recording identifiers
- ISRC
- GBLLH1333804
- Title
- Quomodo cantabimus
- Artist
- William Byrd
- CopyrightID (CopyrightChains transaction hash)
0x778de8382fa66fb510d183b67981e0ef95f166814e3b40ad2104e796e767e631
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T02:22:04+00:00
- Bitcoin block
- 960497
- Canonical record hash
sha256:41d485b65fb63e0fe4a8fa69ab513172468a8487c0b703c6af85477819eab003- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1333804
- Bitcoin block existence check
- https://blockstream.info/api/block/960497