ISRC DEF059802260
Verified recording
DEF059802260 is “Berceuse in D-Flat Major, Op. 57” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x593921bc4e3a0141ad8d0045fb5a5c20b7a447e6c7980c5999de4adb3b9bad1e and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059802260.
Recording identifiers
- ISRC
- DEF059802260
- Title
- Berceuse in D-Flat Major, Op. 57
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x593921bc4e3a0141ad8d0045fb5a5c20b7a447e6c7980c5999de4adb3b9bad1e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:28531e2afa82e0a06d9c3505a24c918858133166e3f733f16c55218ddd46034f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059802260
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Berceuse in D-Flat Major, Op. 57 · Machine-readable JSON-LD