ISRC USFI86900205
Verified recording
USFI86900205 is “Those Were The Days - Instrumental” by Dexter Gordon,
registered on the CopyrightChains blockchain with CopyrightID
0x81a77e4196f8f9c91945a85aa69c0c190f9ccc437cf5066b87161625f80ef874 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI86900205.
Recording identifiers
- ISRC
- USFI86900205
- Title
- Those Were The Days - Instrumental
- Artist
- Dexter Gordon
- CopyrightID (CopyrightChains transaction hash)
0x81a77e4196f8f9c91945a85aa69c0c190f9ccc437cf5066b87161625f80ef874
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:9b338ae858d8d4b67da58cbe23c437f7870e2d448e70e7b5dc4b0c1a63de245a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI86900205
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Those Were The Days - Instrumental · Machine-readable JSON-LD