ISRC DEF059606182
Verified recording
DEF059606182 is “String Quartet No. 11 In F Minor, Op. 95 - "Serioso": 2. Allegretto ma non troppo” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x4f975b4f8ae003b1bfccadf558132421db66d60fea31753ae658276c87d2ab7c and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059606182.
Recording identifiers
- ISRC
- DEF059606182
- Title
- String Quartet No. 11 In F Minor, Op. 95 - "Serioso": 2. Allegretto ma non troppo
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x4f975b4f8ae003b1bfccadf558132421db66d60fea31753ae658276c87d2ab7c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:dbcb65d670aca1b62b70156b6c20016cb01970f111f6cf26d67f5f0a1f8e9177- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059606182
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: String Quartet No. 11 In F Minor, Op. 95 - "Serioso": 2. Allegretto ma non troppo · Machine-readable JSON-LD