On n'a pas tous les jours vingt ans

Recording by Berthe Sylva.

Recording identifiers

ISRC
DEXN92267255
CopyrightID (CopyrightChains transaction hash)
0x2d358d47ee98e9f13fcefbb4998ab17cb15d97513add115f9168c557d354bd18
Copyright registration time
2026-07-31T13:44:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:e0aeeac0a0ebab874b37c1c92469d253c9eadb30de6214577840e6a9b772831b

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.