ISRC GBBBA7470701
Verified recording
GBBBA7470701 is “Sonata I” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0x04e384c56b7c7237c210cd1855da73f85c8aa191d92f0af70a890ec439d46f58 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA7470701.
Recording identifiers
- ISRC
- GBBBA7470701
- Title
- Sonata I
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0x04e384c56b7c7237c210cd1855da73f85c8aa191d92f0af70a890ec439d46f58
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:6a2b284f93ab964c4feb4230258b5b7ee29c1f490027490849af16054a128b47- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA7470701
- Bitcoin block existence check
- https://blockstream.info/api/block/957118