ISRC CZA161540772
Verified recording
CZA161540772 is “Den Jde Spát” by Waldemar Matuška,
registered on the CopyrightChains blockchain with CopyrightID
0x7132bed242a575ce032cf258612b5d18f64140b3ab48481d31894069cd75eead and independently timestamped
in Bitcoin block 960349 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540772.
Recording identifiers
- ISRC
- CZA161540772
- Title
- Den Jde Spát
- Artist
- Waldemar Matuška
- CopyrightID (CopyrightChains transaction hash)
0x7132bed242a575ce032cf258612b5d18f64140b3ab48481d31894069cd75eead
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:23:41+00:00
- Bitcoin block
- 960349
- Canonical record hash
sha256:33158ce391e16b1790ebec3ceb8476d76ded4bd63d46adb5d1028fc47fa9bd8d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540772
- Bitcoin block existence check
- https://blockstream.info/api/block/960349