Niepotrzebny

Recording by Natalia Kukulska.

Recording identifiers

ISRC
PLUM71100801
CopyrightID (CopyrightChains transaction hash)
0xfbbd25c5518697f0dddbfcd7f60ca5395256e4d13aa7a8bf288948dd9e2cc7f3
Copyright registration time
2026-07-06T21:02:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9708954ecea2c30751b3ebaf8dea396939cdd6d0a8e754517fc10c9f84e12fc3

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.