Is It A Sin - Block & Crown and Nick Fiorucci Remix Edit

Recording by John Duff.

Recording identifiers

ISRC
QZK6N2211066
CopyrightID (CopyrightChains transaction hash)
0x87676b9badd483bb3444bf7fa56f473589daff9cba6b6387742ffd17788a1c7b
Copyright registration time
2026-07-07T06:55:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fdb4d878bb4e77d540ffc9d594f3e0be16f4fbc92edd5582ff010701c3c48e2c

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.