ISRC ITK601700648
Verified recording
ITK601700648 is “Quartet: I. Moderate” by John Cage,
registered on the CopyrightChains blockchain with CopyrightID
0x15cc3b215e36c9f1b25143e957e1b0887ec9bd019308bcaae31fe29f08950709 and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601700648.
Recording identifiers
- ISRC
- ITK601700648
- Title
- Quartet: I. Moderate
- Artist
- John Cage
- CopyrightID (CopyrightChains transaction hash)
0x15cc3b215e36c9f1b25143e957e1b0887ec9bd019308bcaae31fe29f08950709
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:457ab336f6584c998ac727fc1a31b31e79d58fe5c2e8e882e540b0da372cc45a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601700648
- Bitcoin block existence check
- https://blockstream.info/api/block/960321