Miejska Sprawa

Recording by Natalia Nykiel.

Recording identifiers

ISRC
PLUM71400230
CopyrightID (CopyrightChains transaction hash)
0x492f60832c32a373aa82f831a4628cbac2be0858eb02d794fc2a7a97e38a3e87
Copyright registration time
2026-07-07T00:36:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:df81fa9867f5f861269b50aa74b75767e95d6cb36f9c4c216b2aaff1fa74ca21

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.