Preserved in Memory

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
PLX352400002
CopyrightID (CopyrightChains transaction hash)
0xd2fabc448964e086fa048882a23b4f483fce660481018a4891c1e08cd8a69fae
Copyright registration time
2026-07-06T23:20:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8b7b01187c1da51f4b06c9e98ff251988cdc66be795a33a357a058e501f23db6

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.