ISRC CZA540904313
Verified recording
CZA540904313 is “Sosna” by Frantisek Nedved,
registered on the CopyrightChains blockchain with CopyrightID
0xe6f4218c05886572ea298a55ff6aebf781b130ec8b220f4e690cddfc2c201d1c 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/CZA540904313.
Recording identifiers
- ISRC
- CZA540904313
- Title
- Sosna
- Artist
- Frantisek Nedved
- CopyrightID (CopyrightChains transaction hash)
0xe6f4218c05886572ea298a55ff6aebf781b130ec8b220f4e690cddfc2c201d1c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:35b15ec0d0fad3d29b4db5b7891fb2246aed23488e56d985cf94f4ad37c02e72- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA540904313
- Bitcoin block existence check
- https://blockstream.info/api/block/956302