ISRC DEF057230107
Verified recording
DEF057230107 is “12 Études, Op. 25: No. 8 in D-Flat Major "Sixths"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb7ad5d7a654d5fa7216b3246ada301382f69bb4124cef446cabf85dee8c022fb and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230107.
Recording identifiers
- ISRC
- DEF057230107
- Title
- 12 Études, Op. 25: No. 8 in D-Flat Major "Sixths"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb7ad5d7a654d5fa7216b3246ada301382f69bb4124cef446cabf85dee8c022fb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:9435fa8ee5ba8ab6078c4a11a57019065be3a8be511f01a41ea55eb7939d656e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230107
- Bitcoin block existence check
- https://blockstream.info/api/block/960144
Full record
Track page: 12 Études, Op. 25: No. 8 in D-Flat Major "Sixths" · Machine-readable JSON-LD