Poinciana - Live At The Black Hawk, San Francisco, CA / September 22, 1959

Recording identifiers

ISRC

USFI86000856

Release date of the album this recording appears on

1991-01-01

CopyrightID (CopyrightChains transaction hash)

0xd036b9a9d9570829a8355eaab3820900b9a6875ae17f4c9cf70855a97e9c9fa3

Copyright registration time

2026-07-06T09:44:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T14:41:13Z

Bitcoin block

957050

Canonical record hash

sha256:32d7a5895e5069e9761f17f7e9e5c3e27d062f3c7e576f14774f7aa0650f3c07

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USFI86000856

What this proof establishes

This recording was released in 1991, 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.