ISRC DEF055330307
Verified recording
DEF055330307 is “24 Préludes, Op. 28: 7. in A major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3c8f78aca17e8cba8c144ddd059acaec66c7c9158080a7296222964af0a4ad8c and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055330307.
Recording identifiers
- ISRC
- DEF055330307
- Title
- 24 Préludes, Op. 28: 7. in A major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3c8f78aca17e8cba8c144ddd059acaec66c7c9158080a7296222964af0a4ad8c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:e01d8ebde6fa042a97751861e9acf43dd7632c2519364a43e6aff9d1b49e1cc7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055330307
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: 24 Préludes, Op. 28: 7. in A major · Machine-readable JSON-LD