March of the Pigs

Recording identifiers

ISRC

US2642044604

Release date of the album this recording appears on

2020-06-02

CopyrightID (CopyrightChains transaction hash)

0xbb5b5261dee90af817a8c1eca1367e2ec8d07ca5e2151c7e4ae2e32acd6c7b23

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T21:25:57Z

Bitcoin block

960468

Canonical record hash

sha256:41b4a7e95b281227279653f9a5311e3163491187ab322cb654cf25eddd389c2b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US2642044604

What this proof establishes

This recording was released in 2020, 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.