ISRC NLB159300015
Verified recording
NLB159300015 is “Etudes-tableaux, Op. 39: No. 7 in C Minor. Lento lugubre” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x2573b5c7225451503f2e49ea9b84c6cddd11676b9d4b3bc2b9bee45fcf6a53a1 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB159300015.
Recording identifiers
- ISRC
- NLB159300015
- Title
- Etudes-tableaux, Op. 39: No. 7 in C Minor. Lento lugubre
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x2573b5c7225451503f2e49ea9b84c6cddd11676b9d4b3bc2b9bee45fcf6a53a1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:80d676bf6c5926a4fe56e8c16aef7babaf7b525bac0641cf8804eedd401a3769- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB159300015
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Etudes-tableaux, Op. 39: No. 7 in C Minor. Lento lugubre · Machine-readable JSON-LD