Weakness and toughness

Recording by 加藤達也.

Recording identifiers

ISRC
JPI101402018
CopyrightID (CopyrightChains transaction hash)
0x69993dad275b8f04c960650162e9eab6a32c3788fdc52f67d0302818452ddab5
Copyright registration time
2026-07-07T16:18:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:9a6a0dd3fab18eb3c9b32f19a025f1a9b8631ea829fc873469928ec024974ae0

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.