ISRC USUM72209860
Verified recording
USUM72209860 is “How Did I Change?” by Nat King Cole,
registered on the CopyrightChains blockchain with CopyrightID
0xc576b4484cb450ddaabca27137b5f2bf2f8b3964f69e6a1cca30acd2c44248e1 and independently timestamped
in Bitcoin block 960218 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72209860.
Recording identifiers
- ISRC
- USUM72209860
- Title
- How Did I Change?
- Artist
- Nat King Cole
- CopyrightID (CopyrightChains transaction hash)
0xc576b4484cb450ddaabca27137b5f2bf2f8b3964f69e6a1cca30acd2c44248e1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:57:05+00:00
- Bitcoin block
- 960218
- Canonical record hash
sha256:d01f886ad4a48d414e1d5acbcc8686926ad68a72baa03e73b27590421e950008- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72209860
- Bitcoin block existence check
- https://blockstream.info/api/block/960218