Sans Souci

Recording by Peggy Lee.

Recording identifiers

ISRC
US1A11735422
CopyrightID (CopyrightChains transaction hash)
0xb07d774f1d73d402ac9ef780b401e3c067a90cfd2049a7d8339a0f1d2ea84ef8
Copyright registration time
2026-07-08T00:54:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:ea24a832538c48adc0cf122c29ad2c526b9a05bee1c154ac2ed51a4339646b5b

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.