Sedm Dní

Recording by Helena Vondráčková.

Recording identifiers

ISRC
CZA168200121
CopyrightID (CopyrightChains transaction hash)
0xd1c2d5deb92dac6226b140098677bbc13717c4b77005802f295c5a3defeb0655
Copyright registration time
2026-07-31T21:18:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T21:25:57Z
Bitcoin block
960468
Canonical record hash
sha256:8311ad6037ffde637013dea98199a63a77c484dac750939fe3976e7cba6e269d

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.