Vetus abit littera (4-part conductus): Vetus abit littera

Recording by Tonus Peregrinus.

Recording identifiers

ISRC
HKI190433632
Release date of the album this recording appears on
2008-04-27
CopyrightID (CopyrightChains transaction hash)
0x99818aaabd0e20c0768fb7ec794111860814684ef1979cb3af929b736c3696a6

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:17:02Z
Bitcoin block
960348
Canonical record hash
sha256:d3f84cb7301d8d9e54ba4e90e401cc9dbcb40d86d835d2a52b6883f7c3415318

What this proof establishes

This recording was released in 2008, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.