I was a girl (長屋晴子より)

Recording by Ai Otsuka.

Recording identifiers

ISRC
JPB602303282
CopyrightID (CopyrightChains transaction hash)
0xeab3f8c189596a0ec69d7fcb3e672e8d0b784655a5e45ee4308ff4c37bb2ce4f
Copyright registration time
2026-07-06T07:25:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T11:02:43Z
Bitcoin block
957026
Canonical record hash
sha256:e041d5b2c1dc8652bcfa562398344acf2d410fbca6c7430507f7649cca9cd9c9

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.