Necessary Evil

Recording by Ella Fitzgerald.

Recording identifiers

ISRC
USMC15106526
CopyrightID (CopyrightChains transaction hash)
0x3dd8f5def1b366a1e2446e729982e4c86ff9ce329c9eaacb28741c9f669c838a
Copyright registration time
2026-06-20T20:13:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:665979bc27f27c7fdf43af0555add025982d12fb0c0ac3ad6e81f18880dd803a

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.