ISRC NLB159300012
Verified recording
NLB159300012 is “Etudes-tableaux, Op. 39: No. 4 in B Minor. Allegro assai” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0xa6515ecc5d1c0577d7ed098eae3658b58d9f421a9eac204746df6980efb46582 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/NLB159300012.
Recording identifiers
- ISRC
- NLB159300012
- Title
- Etudes-tableaux, Op. 39: No. 4 in B Minor. Allegro assai
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0xa6515ecc5d1c0577d7ed098eae3658b58d9f421a9eac204746df6980efb46582
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:6186dedff04e2f74eb9397754b33ef0401bfe04c08a173f0852d937ce63347e6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB159300012
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Etudes-tableaux, Op. 39: No. 4 in B Minor. Allegro assai · Machine-readable JSON-LD