ISRC DEF059404902
Verified recording
DEF059404902 is “String Quartet No. 1 in F Major, Op. 18 No. 1: 2. Adagio affettuoso ed appassionato” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xc0b70309e56c62028698b9e8f36aa4d6bf4b0b48d4c9e8c0458643d14be887d6 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404902.
Recording identifiers
- ISRC
- DEF059404902
- Title
- String Quartet No. 1 in F Major, Op. 18 No. 1: 2. Adagio affettuoso ed appassionato
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xc0b70309e56c62028698b9e8f36aa4d6bf4b0b48d4c9e8c0458643d14be887d6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:2e478ae3f3d705eb1bc4e1ae2f9c6c06d9eb9cdddc80d48576ab53785459f892- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404902
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: String Quartet No. 1 in F Major, Op. 18 No. 1: 2. Adagio affettuoso ed appassionato · Machine-readable JSON-LD