ISRC DEF056502060
Verified recording
DEF056502060 is “Introduction and Variations on a German National Air Op. posth. (KK 925-927)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd8bbb3853e4feb8c1ca54384942620683faa350a5258286fb677541f78828bef and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056502060.
Recording identifiers
- ISRC
- DEF056502060
- Title
- Introduction and Variations on a German National Air Op. posth. (KK 925-927)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd8bbb3853e4feb8c1ca54384942620683faa350a5258286fb677541f78828bef
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:cce9c445a248a7b0e7171cdda8acd139eabc3945a1b396f6f4b4a8150b34d611- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056502060
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Introduction and Variations on a German National Air Op. posth. (KK 925-927) · Machine-readable JSON-LD