ISRC DEF050500012
Verified recording
DEF050500012 is “Piano Sonata No. 3 in B Minor, Op. 58: 3. Largo” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x97cec44d482f9bc3ca76bef550911d8b3628b67f16854203ff5b29bf5cb1ceb4 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/DEF050500012.
Recording identifiers
- ISRC
- DEF050500012
- Title
- Piano Sonata No. 3 in B Minor, Op. 58: 3. Largo
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x97cec44d482f9bc3ca76bef550911d8b3628b67f16854203ff5b29bf5cb1ceb4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:261b373a1240a234e3520a7e4d3e39b6503ec71978e0460d61228a6ad4a77eb2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF050500012
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: Piano Sonata No. 3 in B Minor, Op. 58: 3. Largo · Machine-readable JSON-LD