ISRC DEF057230008
Verified recording
DEF057230008 is “12 Études, Op. 10: No. 9 in F Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd21cbd47dd1d74e2fa6054c7cc296f836a69dfea830fddaa561fb91619b7a284 and independently timestamped
in Bitcoin block 959107 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230008.
Recording identifiers
- ISRC
- DEF057230008
- Title
- 12 Études, Op. 10: No. 9 in F Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd21cbd47dd1d74e2fa6054c7cc296f836a69dfea830fddaa561fb91619b7a284
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T07:19:23+00:00
- Bitcoin block
- 959107
- Canonical record hash
sha256:9d189b25837b9983e5fc3b606636c44387328442053023f4af6b036feeb7b00d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230008
- Bitcoin block existence check
- https://blockstream.info/api/block/959107
Full record
Track page: 12 Études, Op. 10: No. 9 in F Minor · Machine-readable JSON-LD