To Know

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
NLD700700006
CopyrightID (CopyrightChains transaction hash)
0x10b6fe0bfa174d42896072236b206c0bfeb080f7aa5bc0b40833cc17e3edf926
Copyright registration time
2026-06-09T09:31:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:5c0f1ed1e30c4666fd4035eac7314ae4c23c8abe5d63f4c6882b285eb72d25df

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.