ISRC ITK601700651
Verified recording
ITK601700651 is “Quartet: IV. Fast” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0xd9a78a45847d4000d69a1d518282140c00f746cb6d35ebf16aa8bcbc43100ae4 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/ITK601700651.
Recording identifiers
- ISRC
- ITK601700651
- Title
- Quartet: IV. Fast
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0xd9a78a45847d4000d69a1d518282140c00f746cb6d35ebf16aa8bcbc43100ae4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:30:38+00:00
- Bitcoin block
- 960478
- Canonical record hash
sha256:18032dcb3a3acb4caa3a085305bc449d13c4c23ce2b929c5f985a0a1cbf911de- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601700651
- Bitcoin block existence check
- https://blockstream.info/api/block/960478