Last Week

Recording by 38 Spesh.

Recording identifiers

ISRC
QM4TX2336897
CopyrightID (CopyrightChains transaction hash)
0xe3220927574e8f9c21734e47886b516c74e3c07243c47aef3051d6308fe45017
Copyright registration time
2026-06-09T15:42:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:c52b6a42973f4681029c658cac1fbf2053ff3039f831e397540848224f2349b3

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.