Motets: Alma redemptoris mater

Recording by Guillaume Dufay.

Recording identifiers

ISRC
DEF059602870
CopyrightID (CopyrightChains transaction hash)
0x90beec2cb9a4e582501d49556db80ce492767f9d23cddb0147b36484b92c38be
Copyright registration time
2026-06-23T19:15:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:fa76cf1a3c1c61ee22ce3ba5f33510b54ede3a4e5ae1c1fcfedd5f8a555190a6

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.