わたしが竜宮小僧だったとき

Recording identifiers

ISRC

JPP301700477

Release date of the album this recording appears on

2017-11-22

CopyrightID (CopyrightChains transaction hash)

0xadc803bf505a2efc53c87cc0a482e10c58c3f786fcad1a0b0cfcd5101797529b

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T08:30:10Z

Bitcoin block

960229

Canonical record hash

sha256:559b5b7c03c8039a9c40b9a20016299aa20c16a6ab2983f2d80b0420b9309946

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC JPP301700477

What this proof establishes

This recording was released in 2017, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.