ISRC CZA231100078
Verified recording
CZA231100078 is “Jednoho dne se vrátí (Once Upon a Time/Jour tu reviendras)” by Lucie Bílá/Vera Spinarova,
registered on the CopyrightChains blockchain with CopyrightID
0x99689c1939d430fa941b573f182f57a32c8a9d3556f2c451027daebb7eda4af7 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231100078.
Recording identifiers
- ISRC
- CZA231100078
- Title
- Jednoho dne se vrátí (Once Upon a Time/Jour tu reviendras)
- Artist
- Lucie Bílá/Vera Spinarova
- CopyrightID (CopyrightChains transaction hash)
0x99689c1939d430fa941b573f182f57a32c8a9d3556f2c451027daebb7eda4af7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:da5a9383442deb7cee6a072c65d3943890ece27ffd9b49fbb9d46d4a72a30964- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA231100078
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Jednoho dne se vrátí (Once Upon a Time/Jour tu reviendras) · Machine-readable JSON-LD