Schody Penrose’a

Recording by Małgorzata Ostrowska.

Recording identifiers

ISRC
PLA962400513
CopyrightID (CopyrightChains transaction hash)
0xde694f7621fceb1846404088fc937f09cf81fc524464302e50ed3018651a8c41
Copyright registration time
2026-06-25T02:59:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:5fdce49838b34dc56cdfeae00bbc5a9124baf78de6a3740406df17ed3f5f537d

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.