ISRC FR50X1845403
Verified recording
FR50X1845403 is “String Quartet No. 1 "Kreutzer Sonata": III. Con moto - Vivace - Andante - Tempo I” by Leoš Janáček,
registered on the CopyrightChains blockchain with CopyrightID
0x5891974105d3c82bb3780794fcdc0146980cb4c01fb69f667cb57cd85fc2ba2e 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/FR50X1845403.
Recording identifiers
- ISRC
- FR50X1845403
- Title
- String Quartet No. 1 "Kreutzer Sonata": III. Con moto - Vivace - Andante - Tempo I
- Artist
- Leoš Janáček
- CopyrightID (CopyrightChains transaction hash)
0x5891974105d3c82bb3780794fcdc0146980cb4c01fb69f667cb57cd85fc2ba2e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:9df3ec51417cc7be26f2a3d5cb8ef094b59c7bc1296b5beadb1fb7abb882612d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1845403
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 1 "Kreutzer Sonata": III. Con moto - Vivace - Andante - Tempo I · Machine-readable JSON-LD