Předehra

Recording by Z. Kristofova.

Recording identifiers

ISRC
CZA239400262
CopyrightID (CopyrightChains transaction hash)
0x6c198caabb00e292bd88086d862fe8eb725684b17e5fc2baa5e676fbeb29b644
Copyright registration time
2026-06-10T14:45:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:32b69b10620ba73a819b9d1d3eef7916abda46371a0df65a2a9e25bb739ea0ac

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.