ISRC DEF058703020
Verified recording
DEF058703020 is “Mazurka No. 19 in B Minor, Op. 30 No. 2: Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa0b079542dead747aa595e3ad98e75a1873a426f5e00073130e2af4b2f543c4c and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703020.
Recording identifiers
- ISRC
- DEF058703020
- Title
- Mazurka No. 19 in B Minor, Op. 30 No. 2: Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa0b079542dead747aa595e3ad98e75a1873a426f5e00073130e2af4b2f543c4c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:cf2f14378213ac8f72d4046de6295e67a10314803e2a901b186a8479a411cb1e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703020
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: Mazurka No. 19 in B Minor, Op. 30 No. 2: Vivace · Machine-readable JSON-LD