Tylko jesienią

Recording by Jan Pietrzak.

Recording identifiers

ISRC
PLB171200253
CopyrightID (CopyrightChains transaction hash)
0xf347b9c1446fd80300f7a14dfa4d2f6107f9e4614c92f3700afbba0aebc5107d
Copyright registration time
2026-07-07T19:44:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:62e20848e4d34ee4b0a772c44f35bb6bf93f0ed374b1796e976ffacf39b05fd0

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.