Melodic Focus for Study

Recording by Office Background Music.

Recording identifiers

ISRC
QZWDE2328321
CopyrightID (CopyrightChains transaction hash)
0x0ae93b4fa1d66cafe64ff361c265f167fe41a14eb67a927dc8fdd7fb4e397c58
Copyright registration time
2026-07-29T15:06:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T15:22:21Z
Bitcoin block
960121
Canonical record hash
sha256:1e90435e231c3e9683bae9f579048e93cb30756edd18f3d696eab7017576d730

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.