夏のよう

Recording by Hitsujibungaku.

Recording identifiers

ISRC
JPJ901807110
CopyrightID (CopyrightChains transaction hash)
0xf2cadd643c211208a79a092892985ab77e1facf8aee2f830e1a48b49691fa6bc
Copyright registration time
2026-06-06T14:48:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:1f8e37dbcaad44df2c0cc61c4abeb2a8fdd317838e2e5e47ba8b4c55cfaf15bf

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.