ISRC DERK62464004
Verified recording
DERK62464004 is “String Quartet No. 2 in F Major, Op. 92: I. Allegro sostenuto” by Sergei Prokofiev,
registered on the CopyrightChains blockchain with CopyrightID
0x58eab5177122bc507afe75972f0a570c9a119dae17e5ec976485799a69d98863 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DERK62464004.
Recording identifiers
- ISRC
- DERK62464004
- Title
- String Quartet No. 2 in F Major, Op. 92: I. Allegro sostenuto
- Artist
- Sergei Prokofiev
- CopyrightID (CopyrightChains transaction hash)
0x58eab5177122bc507afe75972f0a570c9a119dae17e5ec976485799a69d98863
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:49609b88bd3dc8ed8acfae42cb288db279ed463341113e45a18c542f2727da5e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DERK62464004
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 2 in F Major, Op. 92: I. Allegro sostenuto · Machine-readable JSON-LD