聖数3の二乗

Recording by いとうかなこ.

Recording identifiers

ISRC
JPK631604701
CopyrightID (CopyrightChains transaction hash)
0x59f76a194a918085e7e8db38c71a192205dcf445da15844263c35f02508e756b
Copyright registration time
2026-06-08T01:46:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:4cfbb1fc87874d80731755bfbe3a3c34f88aae19237f96f9af3499721fb9ff5e

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.