ISRC USC4R1016886
Verified recording
USC4R1016886 is “Who Cares? (Take 4)” by Cannonball Adderley,
registered on the CopyrightChains blockchain with CopyrightID
0x30fbd91cab724bf88889a38ed4553c8cbcc227a9fa15d6de41a9e073d8139a9a and independently timestamped
in Bitcoin block 960259 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1016886.
Recording identifiers
- ISRC
- USC4R1016886
- Title
- Who Cares? (Take 4)
- Artist
- Cannonball Adderley
- CopyrightID (CopyrightChains transaction hash)
0x30fbd91cab724bf88889a38ed4553c8cbcc227a9fa15d6de41a9e073d8139a9a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:51:24+00:00
- Bitcoin block
- 960259
- Canonical record hash
sha256:9036c672b4a4a8a61ed98414e94a707eb3cc378493e9ec3c7d61ab0ad8217399- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1016886
- Bitcoin block existence check
- https://blockstream.info/api/block/960259