ISRC DEF057230110
Verified recording
DEF057230110 is “12 Études, Op. 25: No. 11 in A Minor "Winter Wind"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x57a900455ca2e0f01110c47deaff808ae52f7215439df6e09307fc58e76fdc95 and independently timestamped
in Bitcoin block 959128 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230110.
Recording identifiers
- ISRC
- DEF057230110
- Title
- 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x57a900455ca2e0f01110c47deaff808ae52f7215439df6e09307fc58e76fdc95
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T12:33:25+00:00
- Bitcoin block
- 959128
- Canonical record hash
sha256:acfe2df2c2127698694b49302228279023f43031c0a65b9de422e07df8ef7d5d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230110
- Bitcoin block existence check
- https://blockstream.info/api/block/959128
Full record
Track page: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind" · Machine-readable JSON-LD