Czy warto

Recording by Jan Janga Tomaszewski.

Recording identifiers

ISRC
PLB171101152
CopyrightID (CopyrightChains transaction hash)
0xb6e1f97f8edee973540182922ca352c0fd0b2e8d4076d15a9f7b60af9eecb22c
Copyright registration time
2026-07-07T11:50:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b29552c5960ded1aed415c6aa77854838c3b44fbee8f0498a9947cc41578ec4a

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.