ISRC FR7JM2256120
Verified recording
FR7JM2256120 is “Etudes-tableaux, Op. 39: No. 4 in B Minor (Allegro assai)” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x5bb67c7bf8f0190202e7f8df6c260f4343d3976ee3184db6cce0d57a38dc3e39 and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2256120.
Recording identifiers
- ISRC
- FR7JM2256120
- Title
- Etudes-tableaux, Op. 39: No. 4 in B Minor (Allegro assai)
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x5bb67c7bf8f0190202e7f8df6c260f4343d3976ee3184db6cce0d57a38dc3e39
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:dfa18f8fba0d80402c26e9cafa8ff362ccec1acc053edf3e2f8c46206c58ed7b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2256120
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Etudes-tableaux, Op. 39: No. 4 in B Minor (Allegro assai) · Machine-readable JSON-LD