Song For Swirek

Recording by Marcin Wasilewski.

Recording identifiers

ISRC
DEB331020807
CopyrightID (CopyrightChains transaction hash)
0x1f0df77671f9c836d5a858e99190932874a8edaaa7d3ea773eed90c288f10dde
Copyright registration time
2026-06-25T03:21:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:15fa1e28da8031cf0cb2bd13cb855f758e506ee92612011ec8b840536cbaf034

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.