堤防

Recording by 二名敦子.

Recording identifiers

ISRC
JPVI08715180
CopyrightID (CopyrightChains transaction hash)
0x257f251c71bac1df1562978c9aeaa7fb7a8fdff146631f4fe3a417e2b7c34886
Copyright registration time
2026-06-17T22:40:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3ef84d231d25d8b6e325eca9fb4c5c47d69adbc193de3abd0e07e05e908e8874

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.