Quid Pro Quo

Recording by Ayreon.

Recording identifiers

ISRC
NLR491300029
CopyrightID (CopyrightChains transaction hash)
0x8c959a034ee7acd375c02d67448fd0c934223817e8c0314b64dcb073b9b2cb5f
Copyright registration time
2026-06-19T12:40:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:c814b16ab9c7cd9733e490124227589b226ecf1e30cfbc7e260476a33980a9c0

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.