ISRC DEF057503624
Verified recording
DEF057503624 is “5 Polonaisen Wq. 190: 4. Polonaise in A minor” by Carl Philipp Emanuel Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xe5c124e020ee5c7e91b2aad30634f9eb1a6570cb4ef4f88de6c917433f0cd407 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/DEF057503624.
Recording identifiers
- ISRC
- DEF057503624
- Title
- 5 Polonaisen Wq. 190: 4. Polonaise in A minor
- Artist
- Carl Philipp Emanuel Bach
- CopyrightID (CopyrightChains transaction hash)
0xe5c124e020ee5c7e91b2aad30634f9eb1a6570cb4ef4f88de6c917433f0cd407
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:6e2d414ea26486c3ce8174b1c379ff10e2b73959113bf0003b07b9213d07db60- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057503624
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: 5 Polonaisen Wq. 190: 4. Polonaise in A minor · Machine-readable JSON-LD