失敗がいっぱい

Recording by Ozawa Kenji.

Recording identifiers

ISRC
JPPO01904297
CopyrightID (CopyrightChains transaction hash)
0x1126872e940b3fe04a91eb794688ce172c9247754cf392e877fd6d25e3628448
Copyright registration time
2026-06-10T14:29:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:9bd9db3cd99bee7c4487d1958b0402bfd8f1c8b3e5e29771b70476540173941c

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.