ペンギンちゃん

Recording by 米澤円.

Recording identifiers

ISRC
JPKI01715184
CopyrightID (CopyrightChains transaction hash)
0x3032ed1e1480c748bd4cae5dcd4033e87ef3ec6047d5a029f56f37d3ea9cf78b
Copyright registration time
2026-07-29T14:28:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T15:22:21Z
Bitcoin block
960121
Canonical record hash
sha256:2cf227f92aea7d4faa1523797c2fb0d106f622072d4a549359c00d266a2ab912

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.