Que Pereza

Recording identifiers

ISRC

USWL10700445

Release date of the album this recording appears on

2008-05-20

CopyrightID (CopyrightChains transaction hash)

0xdedd5e0620c9bbf6c43f46e4197e496baf5392d0cbcd36cd99f98d61afb7759d

Copyright registration time

2026-07-31T05:53:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:9ad369c509057850bc6a96e8e584c08eb7072d079dcd980b45eaf99fed459d69

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USWL10700445

What this proof establishes

This recording was released in 2008, 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.