C.O.F. Intro

Recording by Big Sad 1900.

Recording identifiers

ISRC
QZNWZ2176775
CopyrightID (CopyrightChains transaction hash)
0x13eb0dad254e0dba022763a5100952cedbac7fd7403c1902efd60c36860df8b0
Copyright registration time
2026-07-07T14:37:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:ce0fd857bd9e8b015ec93c1b9e5c53cd53efddf6a8a2151adb6166fba8452aa9

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.