Tajga Blues '69

Recording by Marta Kubišová.

Recording identifiers

ISRC
CZA166900044
CopyrightID (CopyrightChains transaction hash)
0x2750c7992ed7e7e2714b079c9386cc7ce1ef3fdeca374133ab31be1f65805ed2
Copyright registration time
2026-07-30T18:43:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T19:11:09Z
Bitcoin block
960296
Canonical record hash
sha256:8efbba108ba859a6b37dfe5d9d28a897ee2aabdceece3af0305df0b5cca8e0c4

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.