ISRC USNO19536201
Verified recording
USNO19536201 is “Kleines Requiem fur eine Polka: I. Tranquillo” by Henryk Górecki,
registered on the CopyrightChains blockchain with CopyrightID
0x1d3d1d88b8959e04e358f19300d62678931335520bee026b81d84f348edd6658 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO19536201.
Recording identifiers
- ISRC
- USNO19536201
- Title
- Kleines Requiem fur eine Polka: I. Tranquillo
- Artist
- Henryk Górecki
- CopyrightID (CopyrightChains transaction hash)
0x1d3d1d88b8959e04e358f19300d62678931335520bee026b81d84f348edd6658
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:90a0af79bc76e10eadedddff53bc2314811caf7ccbd7732184b568f149640a91- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO19536201
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Kleines Requiem fur eine Polka: I. Tranquillo · Machine-readable JSON-LD