Behind Closed Doors

Recording identifiers

ISRC

USUM70737369

Release date of the album this recording appears on

1973-12-06

CopyrightID (CopyrightChains transaction hash)

0xe7c0c348669c2ef5b00dc59ebda0febe58f447c30da435d69c8aa444e167ba16

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T04:52:22Z

Bitcoin block

960513

Canonical record hash

sha256:a49d291834ad8fd45da9e1e79ab1006b9fed572c9cd36aaa51d053aa862579c0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USUM70737369

What this proof establishes

This recording was released in 1973, 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.