F.U (Uruka Debut Theme)

Recording by Uruka Fujikura.

Recording identifiers

ISRC
QZPJ32126672
CopyrightID (CopyrightChains transaction hash)
0xda33f3cc8916aec137d3985ba7efa40d003fea0704f928017a47cc291ed4712a
Copyright registration time
2026-06-23T23:16:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:6d54b3498b13cc8630f7afab18e19a2af28d32c44196ca8510f890ad761e8958

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.