ISRC DEF057503622
Verified recording
DEF057503622 is “5 Polonaisen Wq. 190: 2. Polonaise in A major” by Carl Philipp Emanuel Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x1fa4063d6ed06c7233d94422b3918d05b1a64942fe2b465643a08c254f484837 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/DEF057503622.
Recording identifiers
- ISRC
- DEF057503622
- Title
- 5 Polonaisen Wq. 190: 2. Polonaise in A major
- Artist
- Carl Philipp Emanuel Bach
- CopyrightID (CopyrightChains transaction hash)
0x1fa4063d6ed06c7233d94422b3918d05b1a64942fe2b465643a08c254f484837
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:d092891d7b2bdc2e3cb195ca1182e95379276679e3f21dbbf712e3080c50a4d8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057503622
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: 5 Polonaisen Wq. 190: 2. Polonaise in A major · Machine-readable JSON-LD