Purple Line

Recording by Ben Böhmer.

Recording identifiers

ISRC
DETB31727187
CopyrightID (CopyrightChains transaction hash)
0x73dd0536b0a9fc0956a2bbfd9477b355b2a57ce49643d0e4b0acba65b60ce320
Copyright registration time
2026-06-04T09:31:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:9aa1da0d4af7b4df14a9574945cf8b4ea8fa228064cd0dce8d10da22df8a3a8b

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.