Isorhythmic Motets: Balsamus et munda cera

Recording by Guillaume Dufay.

Recording identifiers

ISRC
FRZ149915070
CopyrightID (CopyrightChains transaction hash)
0xf1e1a4e3fc97e4a8cfd4fc8bfdb327ba91602d1e6d449bcb2af26fa05f9321b8
Copyright registration time
2026-07-06T22:15:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e1226edef5a024363abc0d0fd357b6c4a798a8025315b8660d4921ec4436b5ec

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.