ISRC NLQK91800003
Verified recording
NLQK91800003 is “12 Romances, Op. 21 No. 7: Zdes Khorosho (How Fair is this Spot)” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x593170456ce52f587ed32c2710f364a8dbe38e28f8c8031529e54947161bf7e9 and independently timestamped
in Bitcoin block 960302 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLQK91800003.
Recording identifiers
- ISRC
- NLQK91800003
- Title
- 12 Romances, Op. 21 No. 7: Zdes Khorosho (How Fair is this Spot)
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x593170456ce52f587ed32c2710f364a8dbe38e28f8c8031529e54947161bf7e9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:09:33+00:00
- Bitcoin block
- 960302
- Canonical record hash
sha256:2ed0628bbd6bdc801e5cdf0c5cfaaac5c22c9a65d2aad9aa2eeaa7ff5b60826f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLQK91800003
- Bitcoin block existence check
- https://blockstream.info/api/block/960302
Full record
Track page: 12 Romances, Op. 21 No. 7: Zdes Khorosho (How Fair is this Spot) · Machine-readable JSON-LD