Rotation Knock

Recording by Polygonia.

Recording identifiers

ISRC
NLCK42226213
CopyrightID (CopyrightChains transaction hash)
0x5b6703916feb78de26fbd2679e0dbcf25dd521134aaf5d6ce690fdf231139b92
Copyright registration time
2026-07-07T13:36:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8d41a09e2cc9b6c61be5c1be686e689f59470edbf85e932b132a948aed1e65b6

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.