Lamentio Sanctae Matris Ecclesiae Constantinopolitanae

Recording by Guillaume Dufay.

Recording identifiers

ISRC
CH4211700070
CopyrightID (CopyrightChains transaction hash)
0xe9a0a3659a17bca48c107a43a5f0341dd6618a3159918259fe7a0d411418d2fd
Copyright registration time
2026-07-06T22:40:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0bab5c8d5574ee2df139b6b503c9844fcf54472560d51694c0fb6e476f626aa2

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.