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Recording by Mario Kontrargument.

Recording identifiers

ISRC
PL66V2209721
CopyrightID (CopyrightChains transaction hash)
0x9ef42f588946d5c7a9ac499b7788d98522faef25ae09694bf04429ac250dbb6e
Copyright registration time
2026-07-07T23:00:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:deedd4bea3b91e96f5cc2ff6e5fb5e980717e46b295ec946e2a638294dc505d1

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.