Kasztany

Recording by Natasza Zylska.

Recording identifiers

ISRC
PLA391588409
CopyrightID (CopyrightChains transaction hash)
0x80cd72bac1c9d8be6e370c617e9cf36ba2a71f30add411b3d8961e27b504e2ad
Copyright registration time
2026-06-27T11:13:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:07:00Z
Bitcoin block
957061
Canonical record hash
sha256:d01c8b9783769b030bfb92f288ec1afb1e8888a885ee11cf50504c7499697afc

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.