ISRC DEF059404985
Verified recording
DEF059404985 is “String Quartet in C Sharp Minor, Op. 131: V. Presto” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x7fd263ee3fab4f55783c192940bb11f1558cf12bc43a1a7db27d95fe435d234e and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404985.
Recording identifiers
- ISRC
- DEF059404985
- Title
- String Quartet in C Sharp Minor, Op. 131: V. Presto
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x7fd263ee3fab4f55783c192940bb11f1558cf12bc43a1a7db27d95fe435d234e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:36cb7fdf47b45f74ad770e56dd71fdebe83ecec3dbf3e0a408046e6fb6f9212f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404985
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: String Quartet in C Sharp Minor, Op. 131: V. Presto · Machine-readable JSON-LD