Zawsze chciałem mieć brata

Recording by Antoni Kwiecień.

Recording identifiers

ISRC
USWD12435307
CopyrightID (CopyrightChains transaction hash)
0xa8bb1c775863ee23fee17decabcd7031f4561cd5ffb59dc8181d1d9f83c56b90
Copyright registration time
2026-06-04T13:29:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:4898ceaf2b6f0ecb1b34eab5e1dfc81825e60251cabedb305f81f2a628d41985

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.