ISRC DEF055634207
Verified recording
DEF055634207 is “12 Etudes, Op. 10: No. 7 in C Major "Toccata"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd7f98fca127435b1c633695bb16d05236df66260b91a261f2b35d0e0c743db24 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634207.
Recording identifiers
- ISRC
- DEF055634207
- Title
- 12 Etudes, Op. 10: No. 7 in C Major "Toccata"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd7f98fca127435b1c633695bb16d05236df66260b91a261f2b35d0e0c743db24
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:7aedc894a9e7fe939768d6ab601673d4a8970b281ef5a91cfa9045abead76741- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055634207
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: 12 Etudes, Op. 10: No. 7 in C Major "Toccata" · Machine-readable JSON-LD