Both Sides Now

Recording by Rolf Kühn.

Recording identifiers

ISRC
DEH841800165
CopyrightID (CopyrightChains transaction hash)
0x8393d809da7ab8aca5f71a99f0f2334eb8695553fb30102c4efccde80757e0f1
Copyright registration time
2026-07-06T20:32:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1b8a9ca8cdaf33d6bab1bd1d1e83047f8b298af15cf34acfbe43c6bfa160f137

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.