Both Sides Now

Recording by Judy Collins.

Recording identifiers

ISRC
USEE11300016
CopyrightID (CopyrightChains transaction hash)
0xb12ea808f3462bd5d143c4fd4b8258420c76838d867b3d00c5c11ee1bc0f2f04
Copyright registration time
2026-07-07T16:35:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2ee8659642f4697d5213f142116d531af4101b8ec1bc1d449d0de9e7d63d486d

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.