Both Sides Now

Recording by Joni Mitchell.

Recording identifiers

ISRC
USRE19600234
CopyrightID (CopyrightChains transaction hash)
0xc00585d52cd8d4616a526f7a625d3b77ddaf369c4a9c2be6a4d3b44e09c2ea34
Copyright registration time
2026-06-01T16:29:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:29b0235d1a6dbfa152403e428798e5fa9b15eb958e5793d8ea3d06ddf34ad8d0

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.