This Masquerade

Recording identifiers

ISRC

USB4U0900300

CopyrightID (CopyrightChains transaction hash)

0x85db0d89b04033d4fec2c8ee1e3389897ec98067bb7270b404d912d781653a8e

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T22:13:32Z

Bitcoin block

960155

Canonical record hash

sha256:6da8fe6ba084b806411b767c9e7aef0c0eba53ec2a32ee8245a20e2755d3d610

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.