Płynie Wisła, płynie

Recording by Kazimierz Hofman.

Recording identifiers

ISRC
PLA391322024
CopyrightID (CopyrightChains transaction hash)
0xc5ebbfd51abe1af77f56d0043f879b0b3bc43f241fc354cf9a7e69d613961ed6
Copyright registration time
2026-07-31T16:13:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T16:33:26Z
Bitcoin block
960435
Canonical record hash
sha256:c8128a96cb0c915a1e689e58e08f9e8fbf7cb4b5bc2fa6a20d9cf31a74151254

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.