ISRC CZA162400416
Verified recording
CZA162400416 is “The Bartered Bride, Act II, Scene 4: "I Know a Girl" (Kecal, Jeník)” by Zdeněk Košler,
registered on the CopyrightChains blockchain with CopyrightID
0x0e503a22fb62d627e7cd9dd0d047a03f1ea2acf3b87ee920fb2b098867ebcd90 and independently timestamped
in Bitcoin block 957124 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162400416.
Recording identifiers
- ISRC
- CZA162400416
- Title
- The Bartered Bride, Act II, Scene 4: "I Know a Girl" (Kecal, Jeník)
- Artist
- Zdeněk Košler
- CopyrightID (CopyrightChains transaction hash)
0x0e503a22fb62d627e7cd9dd0d047a03f1ea2acf3b87ee920fb2b098867ebcd90
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:53:27+00:00
- Bitcoin block
- 957124
- Canonical record hash
sha256:1e0041a365270d7639a20e3aedf57ac6021a17dde879f531e35e42a23e6c4ee8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162400416
- Bitcoin block existence check
- https://blockstream.info/api/block/957124
Full record
Track page: The Bartered Bride, Act II, Scene 4: "I Know a Girl" (Kecal, Jeník) · Machine-readable JSON-LD