The Hardest Part

Recording by Jeremy Blake.

Recording identifiers

ISRC
QZTB62378095
CopyrightID (CopyrightChains transaction hash)
0x54991c1abbc989fbd247fa834e18e8d83190cd158fcd436cfa53452582a9ecab
Copyright registration time
2026-07-07T02:08:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d10b56c52fafdb5c985e786e5eb2e1fc468bafe933c3c6c64cf80135f885e429

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.