What's Hard?

Recording by OldBoy Rhymes.

Recording identifiers

ISRC
QZNWX2488681
CopyrightID (CopyrightChains transaction hash)
0x9573049f53bb1d3b60ba51fb9d52b75062a24de0f6882fcc30f098a23cebb5ac
Copyright registration time
2026-07-31T05:42:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:49:18Z
Bitcoin block
960355
Canonical record hash
sha256:bb04c82a973ae1f4d1e8e2a3f694aabe2c106293235695c4f11e7d9a0277053b

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.