Goodbye, Porkpie Hat

Recording identifiers

ISRC

USAT20001742

Release date of the album this recording appears on

2021-05-14

CopyrightID (CopyrightChains transaction hash)

0xa14104939c204eb5db9865d0c4661a981a452c9de6997495a469f9afe69da6dd

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T21:25:57Z

Bitcoin block

960468

Canonical record hash

sha256:2c15560d6f95862ff43e82de9b2c0d69a26825a18b42f57570369c717ad761b2

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USAT20001742

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.