ISRC DEF059504832
Verified recording
DEF059504832 is “String Quartet No. 2 in G Major, Op. 18 No. 2: 2. Adagio cantabile - Allegro - Tempo I” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x35cf2d6a30db425ba7b9ca359bc753dabcf5f6ffe4531d35485fe1cd13327b01 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059504832.
Recording identifiers
- ISRC
- DEF059504832
- Title
- String Quartet No. 2 in G Major, Op. 18 No. 2: 2. Adagio cantabile - Allegro - Tempo I
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x35cf2d6a30db425ba7b9ca359bc753dabcf5f6ffe4531d35485fe1cd13327b01
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:f2c33225f6997f5046630122ec5c0069c6573eb7333ea21c270f131b056e123a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059504832
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: String Quartet No. 2 in G Major, Op. 18 No. 2: 2. Adagio cantabile - Allegro - Tempo I · Machine-readable JSON-LD