ISRC BER182279305
Verified recording
BER182279305 is “Four Walls, Act I: IV” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0xad64f8d6c4d0a755d8af726f375dff1a3dec7f92388069302d195957352b55ac and independently timestamped
in Bitcoin block 960478 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182279305.
Recording identifiers
- ISRC
- BER182279305
- Title
- Four Walls, Act I: IV
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0xad64f8d6c4d0a755d8af726f375dff1a3dec7f92388069302d195957352b55ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:30:38+00:00
- Bitcoin block
- 960478
- Canonical record hash
sha256:6cc8bf8c6349f1f1f7742270ec1c02f096f2ef5ac62206e0c353f8471068a4ab- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182279305
- Bitcoin block existence check
- https://blockstream.info/api/block/960478
Full record
Track page: Four Walls, Act I: IV · Machine-readable JSON-LD