ISRC CZA163342616
Verified recording
CZA163342616 is “Valčíček” by František Nedvěd st.,
registered on the CopyrightChains blockchain with CopyrightID
0xfe0877196c9886766b9c47d9f6495e1b5e9436d2155dca604fcd0f7d885bb1e2 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA163342616.
Recording identifiers
- ISRC
- CZA163342616
- Title
- Valčíček
- Artist
- František Nedvěd st.
- CopyrightID (CopyrightChains transaction hash)
0xfe0877196c9886766b9c47d9f6495e1b5e9436d2155dca604fcd0f7d885bb1e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:cefc53a2e007b13dcfc1b10dac9ed8bd110b8614df9699465fca00a3b4ec3e37- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA163342616
- Bitcoin block existence check
- https://blockstream.info/api/block/957120