Modrej Len
Recording by Petr Rezek.
Recording identifiers
- ISRC
- CZA166900511
- CopyrightID (CopyrightChains transaction hash)
- 0x4691e044327b50d7fe35b5b3f9e46a350291e7566fae8605e47fb99be5921807
- Copyright registration time
- 2026-07-07T17:57:39+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19Z
- Bitcoin block
- 957118
- Canonical record hash
- sha256:0b2ee38e803d931f5a5cb11e3816c1d7b7296ef93738acb3046306bf69e3b694
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.