The lonesome waltz of leonard cohen

Recording identifiers

ISRC

US4R70600055

Release date of the album this recording appears on

2005-11-07

CopyrightID (CopyrightChains transaction hash)

0x43b0bc7f858889d888daafebaa90c9db528f58b505f0d174e9da507cb46d6ef5

Copyright registration time

2026-06-11T23:15:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:b40a412b418a938078a2a5b9aac00dcaa8dfd99b8f995ef6dc6e54206f1da0c9

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US4R70600055

What this proof establishes

This recording was released in 2005, 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.