ISRC US9930511571
Verified recording
US9930511571 is “Paul Hindemith - Sonata for Flute and Piano - II. Sehr Langsam” by Mark Sparks,
registered on the CopyrightChains blockchain with CopyrightID
0xe1ca612ad8a2c283f0d6b71ff8fb08b0a5659b8fe8803d88994b9be2254c4a07 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511571.
Recording identifiers
- ISRC
- US9930511571
- Title
- Paul Hindemith - Sonata for Flute and Piano - II. Sehr Langsam
- Artist
- Mark Sparks
- CopyrightID (CopyrightChains transaction hash)
0xe1ca612ad8a2c283f0d6b71ff8fb08b0a5659b8fe8803d88994b9be2254c4a07
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:e8f40c13dcfa4152cd9b5a5b87c5ab25dd6738b39d28c8f0ec4f9cb5eb53bba9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9930511571
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Paul Hindemith - Sonata for Flute and Piano - II. Sehr Langsam · Machine-readable JSON-LD