Girlhood Boyhood

Recording by 蓮沼執太フィル.

Recording identifiers

ISRC
JPPO02101842
CopyrightID (CopyrightChains transaction hash)
0x2db25b09205e1de5a35c4c2236a91e941993bc97695cd0473744791728022d70
Copyright registration time
2026-07-07T13:12:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ec2855aa372248ab63b9c108e21f3d6417d0827e9a3a771472f98058cf8fff3b

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.