No, A Ja?

Recording by Michał Bajor.

Recording identifiers

ISRC
PLUM72200900
CopyrightID (CopyrightChains transaction hash)
0x6d63ed09eced22ad87b251381ea172a5bc6c17c8e6834b7b0da32e97d2ae1179
Copyright registration time
2026-06-07T09:13:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:5a717ae66ad5b55d46cae460f2df04d265baec6669267184da73ad97da1646d1

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.