Cuatro Palabras

Recording identifiers

ISRC

US2BR9700424

Release date of the album this recording appears on

2009-11-13

CopyrightID (CopyrightChains transaction hash)

0x402ddaa6c665f7dfc6bf6d0df41d62348db579dd405e08cdb55a88a9b9f93bd2

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:ac1b0ced3e79476ac8af96916985d3970d735fcf2564bf2d9caec4eed8eb4355

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US2BR9700424

What this proof establishes

This recording was released in 2009, 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.