ISRC DEF056507112
Verified recording
DEF056507112 is “Waltz No. 7 in C-Sharp Minor, Op. 64 No. 2: Tempo giusto - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x291dfdc3cee56a7ebba1cfdb859b2c7badbb1841ca397ed3b1493408dca07e86 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/DEF056507112.
Recording identifiers
- ISRC
- DEF056507112
- Title
- Waltz No. 7 in C-Sharp Minor, Op. 64 No. 2: Tempo giusto - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x291dfdc3cee56a7ebba1cfdb859b2c7badbb1841ca397ed3b1493408dca07e86
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:432fbf7fccce0f6ec110bbdd9982751bc022103cf789b050d8d1d1420baad184- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507112
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: Waltz No. 7 in C-Sharp Minor, Op. 64 No. 2: Tempo giusto - Pt. 2 · Machine-readable JSON-LD