ISRC DEF056502067
Verified recording
DEF056502067 is “Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 7” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x0a07e54762237060b1910bca5b055cb5cadc2a4eedf66d2d09ba522465767021 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056502067.
Recording identifiers
- ISRC
- DEF056502067
- Title
- Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 7
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x0a07e54762237060b1910bca5b055cb5cadc2a4eedf66d2d09ba522465767021
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:6215faab2a8c41bba0c2413cfe97dd029b90a5c9e258ec63e6cd78ef615735c5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056502067
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Introduction and Variations on a German National Air Op. posth. (KK 925-927) - Pt. 7 · Machine-readable JSON-LD