ISRC DEF059404305
Verified recording
DEF059404305 is “String Quartet in B Flat Major, Op. 130: V. Cavatina ( Adagio molto espressivo)” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x2b0cd2fdfaf8a725c8fe0519214ca1ed3980b766434d948187f1782e2c20fc0b and independently timestamped
in Bitcoin block 957122 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404305.
Recording identifiers
- ISRC
- DEF059404305
- Title
- String Quartet in B Flat Major, Op. 130: V. Cavatina ( Adagio molto espressivo)
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x2b0cd2fdfaf8a725c8fe0519214ca1ed3980b766434d948187f1782e2c20fc0b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:39:04+00:00
- Bitcoin block
- 957122
- Canonical record hash
sha256:7273b2d0d5ac710a5c9703b89aaacc114912363e42ee3d977d680f46d5852473- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404305
- Bitcoin block existence check
- https://blockstream.info/api/block/957122
Full record
Track page: String Quartet in B Flat Major, Op. 130: V. Cavatina ( Adagio molto espressivo) · Machine-readable JSON-LD