ISRC DEF059404992
Verified recording
DEF059404992 is “String Quartet No. 15 in A Minor, Op. 132: II. Allegro ma non tanto” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x8fe6a8f3cd4b6a82cec3556745a008afb590618c2b29ca719d8636d3079c7fac and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404992.
Recording identifiers
- ISRC
- DEF059404992
- Title
- String Quartet No. 15 in A Minor, Op. 132: II. Allegro ma non tanto
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x8fe6a8f3cd4b6a82cec3556745a008afb590618c2b29ca719d8636d3079c7fac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:62b210a521e2d380f467b3f122d9afef1165a227943a9a5102be254b1dd02396- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404992
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: String Quartet No. 15 in A Minor, Op. 132: II. Allegro ma non tanto · Machine-readable JSON-LD