ISRC USFI86400341
Verified recording
USFI86400341 is “Work Song” by Vince Guaraldi,
registered on the CopyrightChains blockchain with CopyrightID
0xd465c058f62a40b77f0ce0e56eb97f42aed964d82e58cf75c4e0a2cb76008ddc and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI86400341.
Recording identifiers
- ISRC
- USFI86400341
- Title
- Work Song
- Artist
- Vince Guaraldi
- CopyrightID (CopyrightChains transaction hash)
0xd465c058f62a40b77f0ce0e56eb97f42aed964d82e58cf75c4e0a2cb76008ddc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:5bf3e9ff5c82b7c807d7abd6fbdd9eaa224b3a780934f167b35e85fb610a8cc7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI86400341
- Bitcoin block existence check
- https://blockstream.info/api/block/953520