KILL ONCE KILL TWICE

Recording identifiers

ISRC

TWW531910005

Release date of the album this recording appears on

2019-07-31

CopyrightID (CopyrightChains transaction hash)

0x37acb94e69043a7b541e429de07c378632b29108818dcb97edac8bbdb6a4d0e1

Copyright registration time

2026-07-31T19:39:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:abfb13783218bc230010d047a7c0a46383b768aa38fe18848c0d236bf7b3ca85

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC TWW531910005

What this proof establishes

This recording was released in 2019, 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.