ISRC USC4R0302121
Verified recording
USC4R0302121 is “Contrabajissimo” by Gary Burton,
registered on the CopyrightChains blockchain with CopyrightID
0x1aa99ba74eb1fc1d9e71077f05277150554406eda534d5a4ebf3191ffadb5682 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R0302121.
Recording identifiers
- ISRC
- USC4R0302121
- Title
- Contrabajissimo
- Artist
- Gary Burton
- CopyrightID (CopyrightChains transaction hash)
0x1aa99ba74eb1fc1d9e71077f05277150554406eda534d5a4ebf3191ffadb5682
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:220697b24b193d35786dd12e316f6d1c8711317ec6f4e5a22c2e1428e08b0fa1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R0302121
- Bitcoin block existence check
- https://blockstream.info/api/block/957118