Piesn o Matce

Recording by Mieczysław Fogg.

Recording identifiers

ISRC
PLB960700314
CopyrightID (CopyrightChains transaction hash)
0x39eb4fd386fee0f03930274f940804dc0b5eede2853b76f741c6e5672a62efdf
Copyright registration time
2026-07-07T19:26:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:96063f8a4574de476f5d0b170de515648d4656fe2893668c2d3d0f49823b876a

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.