ISRC BER182279309
Verified recording
BER182279309 is “Four Walls, Act I: VII” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0x5735807c255701853fb19bbe8bc189f839758ada5da81d480c4370929f43da79 and independently timestamped
in Bitcoin block 960473 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182279309.
Recording identifiers
- ISRC
- BER182279309
- Title
- Four Walls, Act I: VII
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0x5735807c255701853fb19bbe8bc189f839758ada5da81d480c4370929f43da79
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T22:27:44+00:00
- Bitcoin block
- 960473
- Canonical record hash
sha256:9ba3a81a3d185505ddb85be495a870120393c38b02e13e842500b63839b90b43- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER182279309
- Bitcoin block existence check
- https://blockstream.info/api/block/960473
Full record
Track page: Four Walls, Act I: VII · Machine-readable JSON-LD