ISRC DEF057503621
Verified recording
DEF057503621 is “5 Polonaisen Wq. 190: 1. Polonaise in D major” by Carl Philipp Emanuel Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x24a7f10ddfb7fdbb1bfb16dd8ffcf9acfe4dcd3477896e3bd2cb0029681b7bb9 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057503621.
Recording identifiers
- ISRC
- DEF057503621
- Title
- 5 Polonaisen Wq. 190: 1. Polonaise in D major
- Artist
- Carl Philipp Emanuel Bach
- CopyrightID (CopyrightChains transaction hash)
0x24a7f10ddfb7fdbb1bfb16dd8ffcf9acfe4dcd3477896e3bd2cb0029681b7bb9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:37ff286d92aaf8b0de9eaf3254d4d98c59a2cb0d6032b59b4870a21adb1cc551- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057503621
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: 5 Polonaisen Wq. 190: 1. Polonaise in D major · Machine-readable JSON-LD