Deux esquisses

Recording by Michel Lysight.

Recording identifiers

ISRC
BEC992560609
CopyrightID (CopyrightChains transaction hash)
0x84c1fbf7f69d209d0c23a3ce2c0da9e2b0fb168ae1095e658a93a6bb37b1acb9
Copyright registration time
2026-07-06T18:26:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:02036fef14f1b696187969d14ddecce074777b5a7fffc5c026d963e6baa434b9

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.