Osobno czy razem

Recording by Natalia Kukulska.

Recording identifiers

ISRC
PLC592100154
CopyrightID (CopyrightChains transaction hash)
0x793cd77674e6a40edb2fe9b765eda589d2e765e3f921ef4c9ef058ad9dd8a4ba
Copyright registration time
2026-06-19T06:24:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:fd8c3b68e08a67b2c66e0708036d0be546c8abafe886050dd6b8e83143d6aa10

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.