Switchboard

Recording by Armand Hammer.

Recording identifiers

ISRC
USFP13782414
CopyrightID (CopyrightChains transaction hash)
0xf90e9fcca898df37fd1bff24d8e0ddf7d430efa018e7b7f823bf1d0a14fbb96b
Copyright registration time
2026-06-09T08:15:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T17:25:41Z
Bitcoin block
953536
Canonical record hash
sha256:e8921fb907248e583c80134e8e0479f5dd612389db5209739dfcd3285f5a57c5

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.