ISRC USAB10616950
Verified recording
USAB10616950 is “Last Rag” by William Bolcom,
registered on the CopyrightChains blockchain with CopyrightID
0x7ce06d3f8ccd68888e94e0326f970eea89d70a50c1a26a78f942127c016abee8 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10616950.
Recording identifiers
- ISRC
- USAB10616950
- Title
- Last Rag
- Artist
- William Bolcom
- CopyrightID (CopyrightChains transaction hash)
0x7ce06d3f8ccd68888e94e0326f970eea89d70a50c1a26a78f942127c016abee8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:73f067229d78001c90c5146730a72d55d54eea0a22216952a430136f9388d223- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10616950
- Bitcoin block existence check
- https://blockstream.info/api/block/960441