The Cat

Recording by Marcin Wasilewski Trio.

Recording identifiers

ISRC
DEB330701907
CopyrightID (CopyrightChains transaction hash)
0x7566473d54db7106f87fdd4cee9a6dd0bc873bd99ea0c6d475d94fa5431ac53b
Copyright registration time
2026-06-20T02:42:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:1e535132117c8eb186939c7af87d731ab8285f2aa7f5c1c73348070ffd34069a

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.