Time machine

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
PLX351800004
CopyrightID (CopyrightChains transaction hash)
0xfe3cf91e891a07f71edb1753f08f16036fadb09d00278a17b043100fd1f002b3
Copyright registration time
2026-07-07T09:31:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:8cac60f04623925af2a1e315455e7fdad1206e7e6acadfe02728991fb08f4a4b

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.