一体どうしちゃったの?

Recording by ナツノセ.

Recording identifiers

ISRC
SGW502469685
CopyrightID (CopyrightChains transaction hash)
0x5b9a00c731d6f242e6f4ef7fcf72bbd498299407f1e94a3fac0c50a235168440
Copyright registration time
2026-06-07T16:39:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:72dc87fe546e26ea307f4090e8c971e8376019d03a995484e747471382ee6d26

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.