Och, jak to brzmiało

Recording by Kuba Knap.

Recording identifiers

ISRC
FR59R2102714
CopyrightID (CopyrightChains transaction hash)
0xb4865dec02844adaa342b17cad78d220d98c545a1a0db2b8f622d42ebced56c0
Copyright registration time
2026-07-07T01:06:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4e3b54756a1b29bed0b920105e072c77d32708e8fccaee0af42279de6f445e66

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.