ISRC DEF059404986
Verified recording
DEF059404986 is “String Quartet No. 14 in C Sharp Minor, Op. 131: VI. Adagio quasi un poco andante” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x68e8034f3cafd3ef68fc2345a2e60798cb43aff6701afb37031a34b057fe7b18 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/DEF059404986.
Recording identifiers
- ISRC
- DEF059404986
- Title
- String Quartet No. 14 in C Sharp Minor, Op. 131: VI. Adagio quasi un poco andante
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x68e8034f3cafd3ef68fc2345a2e60798cb43aff6701afb37031a34b057fe7b18
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:1064eb73c23a8b67b39007a3a44007322291c2ccfdb308c6003834503d5b195d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404986
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 14 in C Sharp Minor, Op. 131: VI. Adagio quasi un poco andante · Machine-readable JSON-LD