ISRC CZA166500031
Verified recording
CZA166500031 is “O Mamince” by Josef Zíma,
registered on the CopyrightChains blockchain with CopyrightID
0x311c95aea0118289e011692403dcccd4a8e58625f61cc9c3c80d4791db81efaa and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500031.
Recording identifiers
- ISRC
- CZA166500031
- Title
- O Mamince
- Artist
- Josef Zíma
- CopyrightID (CopyrightChains transaction hash)
0x311c95aea0118289e011692403dcccd4a8e58625f61cc9c3c80d4791db81efaa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:92d6463019f5881d5ed30e1d6b85a38ed812f0fa116f57056620471562b03f16- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500031
- Bitcoin block existence check
- https://blockstream.info/api/block/960448