Casablanca

Recording identifiers

ISRC

USBC18900584

Release date of the album this recording appears on

1972

CopyrightID (CopyrightChains transaction hash)

0xdcde37479386030b66a3f5260f4239e127e66dfc380c3da97e9766c0e7c5563d

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:7c646502e2bfa3235548c27d8fd2d195c06a3d50238f31577add65494658c088

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USBC18900584

What this proof establishes

This recording was released in 1972, 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.