ISRC FR50X1845402
Verified recording
FR50X1845402 is “String Quartet No. 1 "Kreutzer Sonata": II. Con moto” by Leoš Janáček,
registered on the CopyrightChains blockchain with CopyrightID
0xad4e55288cb95881682075d238f05fd157cd789058738ffea8eab68045a18819 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1845402.
Recording identifiers
- ISRC
- FR50X1845402
- Title
- String Quartet No. 1 "Kreutzer Sonata": II. Con moto
- Artist
- Leoš Janáček
- CopyrightID (CopyrightChains transaction hash)
0xad4e55288cb95881682075d238f05fd157cd789058738ffea8eab68045a18819
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:4a0f83044f2a48697d9243a986f8ac195cf6294fa8b9d46292b4411d0a5b758e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1845402
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: String Quartet No. 1 "Kreutzer Sonata": II. Con moto · Machine-readable JSON-LD