Used to Be

Recording by Jack Harlow.

Recording identifiers

ISRC
USAT22202030
CopyrightID (CopyrightChains transaction hash)
0x3f3682464ac910857337a976d68a6bf2643cfcca78fb4549a8ef5d70102185c7
Copyright registration time
2026-06-07T04:20:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:c7451fcd273d06815ca4086e8c95679a93905ddb799348f47208bd3d6915164c

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.