ISRC USUM71505258
Verified recording
USUM71505258 is “Unfair - Alternate Take” by Nat King Cole,
registered on the CopyrightChains blockchain with CopyrightID
0x8e885d3852f352afc7e5accc648f28fa805c30a7335be008886f341635450fdc and independently timestamped
in Bitcoin block 959134 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71505258.
Recording identifiers
- ISRC
- USUM71505258
- Title
- Unfair - Alternate Take
- Artist
- Nat King Cole
- CopyrightID (CopyrightChains transaction hash)
0x8e885d3852f352afc7e5accc648f28fa805c30a7335be008886f341635450fdc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T13:34:27+00:00
- Bitcoin block
- 959134
- Canonical record hash
sha256:c36268a852eceb4f36a8d2353eb9e7ba3f4f11e6fc072bf77d2e6a261f929286- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71505258
- Bitcoin block existence check
- https://blockstream.info/api/block/959134
Full record
Track page: Unfair - Alternate Take · Machine-readable JSON-LD