Multiple Voices

Recording identifiers

ISRC

DKBR70702203

Release date of the album this recording appears on

2007-11-30

CopyrightID (CopyrightChains transaction hash)

0x9f23bcaf5480268271b35f3f42d1cca0fb069b9039c05fbc2455f05bf37b7dfe

Copyright registration time

2026-06-23T17:13:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:20221f66e0fcdbbe89d7aad6d9330455e5473caccb86034c11d8ea5b950cc0ec

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DKBR70702203

What this proof establishes

This recording was released in 2007, 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.