Coffin Car

Recording by Yoko Ono.

Recording identifiers

ISRC
US38W1728403
CopyrightID (CopyrightChains transaction hash)
0xf6deca0d5a9156035c574277f52b988edc391dfa10a40287cb2771c49baadba4
Copyright registration time
2026-07-29T10:51:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T11:30:20Z
Bitcoin block
960099
Canonical record hash
sha256:aa7c0f90180f82de610eb8bf453d2b022940f35eb0de92fc8726d3c2c882bd45

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.