Both Sides Now

Recording by Judy Collins.

Recording identifiers

ISRC
USEE10501861
CopyrightID (CopyrightChains transaction hash)
0xad0815bbe029fc9d64770b2d8ce533746b3c9714cbc49d7e2ae8d03e12db1d47
Copyright registration time
2026-06-19T08:27:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f96a3202669958288f124aa6bbad32209b15bcaa06b13aa657460e97df4a7ca5

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.