プカプカ

Recording by 西岡恭蔵.

Recording identifiers

ISRC
JPKI07252618
CopyrightID (CopyrightChains transaction hash)
0x1c67f225356f7e8fc9015116ba3cee5aabd75b8ee2dd8707702cd7411d997eac
Copyright registration time
2026-06-09T23:03:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:45d45a8c3291dbea97fb55a2b70f35b5d1c35f62be690904923db05d3175b9e3

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.