Na Marjánce

Recording by Josef Zíma.

Recording identifiers

ISRC
CZA168300385
CopyrightID (CopyrightChains transaction hash)
0xf62684f3e5268eb849e64d8cd9f3a3dc804612e829d836f5e6a71d31f7bdb297
Copyright registration time
2026-07-30T03:41:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T04:47:22Z
Bitcoin block
960207
Canonical record hash
sha256:602654a61f688df24e4011e2c74d987d8c5371e67d941349eb51da46b0c007be

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.