ISRC CH6639571521
Verified recording
CH6639571521 is “Sing joyfully” by William Byrd,
registered on the CopyrightChains blockchain with CopyrightID
0xeffe7fa5f2828a0304fcbb67a97279d6a1541ad3c4e52f71ea9b2c97d4088fd6 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6639571521.
Recording identifiers
- ISRC
- CH6639571521
- Title
- Sing joyfully
- Artist
- William Byrd
- CopyrightID (CopyrightChains transaction hash)
0xeffe7fa5f2828a0304fcbb67a97279d6a1541ad3c4e52f71ea9b2c97d4088fd6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:14c82c3281e005dbd4cbd4fa7bb4d075acb10e04c54e68e8be565b88d8556026- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6639571521
- Bitcoin block existence check
- https://blockstream.info/api/block/956302