We Used to Be Africans

Recording identifiers

ISRC

PT4ED1600094

CopyrightID (CopyrightChains transaction hash)

0xd05e43b11f79bf22075005adb8d898e15c6b3293c14dd6182e802bee97ef41c4

Copyright registration time

2026-07-29T13:59:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T14:28:24Z

Bitcoin block

960117

Canonical record hash

sha256:55e97c60415462228968096d6e21424429fa0ea6790749a2d51a751b21d1cdd3

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.