Orphée et Eurydice: J'ai perdu mon Eurydice

Recording by Maria Callas.

Recording identifiers

ISRC
GBAYC8700337
CopyrightID (CopyrightChains transaction hash)
0x62322158630c48d44af7e80072e3f860801207f47c317c7dda6cf1b3a104e06f
Copyright registration time
2026-06-06T17:50:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:b31ac963654831c56bae318a0695d1a437716b482036a26205b5077a238ca386

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.