バカだなぁ

Recording by 大橋彩香.

Recording identifiers

ISRC
JPI101801419
CopyrightID (CopyrightChains transaction hash)
0xc8d14c89d5bedf0d8a40adfcf7a8393bb234a8b360f1384979052e89bbfd0906
Copyright registration time
2026-07-06T11:06:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:43:21Z
Bitcoin block
957065
Canonical record hash
sha256:32df68370a0ea23d98bbaf52dfed8c0942db0f4bf02f5d7b7b3f0b7d294adfe6

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.