Casaca de Couro

Recording identifiers

ISRC

BRSME9700353

Release date of the album this recording appears on

1975

CopyrightID (CopyrightChains transaction hash)

0x0c96268cfd01db32210ebcad3e4c31852978cf98fdad9e1b972bda3ea1af427f

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T18:23:33Z

Bitcoin block

960291

Canonical record hash

sha256:ae02ba03c6e3ff59b48da10fd52821cced39354156a16aff1b0aef2255811da8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC BRSME9700353

What this proof establishes

This recording was released in 1975, 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.