Porgy And Bess: Mornin' Lawyer

Recording identifiers

ISRC

USBC17600313

Release date of the album this recording appears on

1977

CopyrightID (CopyrightChains transaction hash)

0xec17540e99326a8d0a293312412d509e7a1ac2af47d24eb29397448a0d9a64c0

Copyright registration time

2026-07-31T20:28:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T21:25:57Z

Bitcoin block

960468

Canonical record hash

sha256:4f1a4865dec3120a453957561da6c060aab4f043ec1f8d69fdecd6d179dc60b1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USBC17600313

What this proof establishes

This recording was released in 1977, 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.