ISRC USFKZ0610261
Verified recording
USFKZ0610261 is “Hammersmith, Op. 52, H. 178” by Gustav Holst,
registered on the CopyrightChains blockchain with CopyrightID
0x88c43637914c40965f48e071bf57e67ca92a8e2120bce8f06a95acd2b950f018 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFKZ0610261.
Recording identifiers
- ISRC
- USFKZ0610261
- Title
- Hammersmith, Op. 52, H. 178
- Artist
- Gustav Holst
- CopyrightID (CopyrightChains transaction hash)
0x88c43637914c40965f48e071bf57e67ca92a8e2120bce8f06a95acd2b950f018
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:65d5422a8ed13b1fd892a2b0417a9d840efa9c69f99bbbbf83aea54f99c0cecd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFKZ0610261
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Hammersmith, Op. 52, H. 178 · Machine-readable JSON-LD