ISRC FINDE2200020
Verified recording
FINDE2200020 is “Four²” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0xb3b66a9660a6084e16acedbb86a4f939aeea7ad6be3672570e825b87c1c3d86c and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE2200020.
Recording identifiers
- ISRC
- FINDE2200020
- Title
- Four²
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0xb3b66a9660a6084e16acedbb86a4f939aeea7ad6be3672570e825b87c1c3d86c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:35a9384543ab43576595fda272b67dfb3b1a222fd7d0e8f1b6d9d269fba31edb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE2200020
- Bitcoin block existence check
- https://blockstream.info/api/block/960368