In Half a Year

Recording by yuma yamaguchi.

Recording identifiers

ISRC
JPCO02437860
CopyrightID (CopyrightChains transaction hash)
0xff573995698201546362afcb01d7ee05d99ba18f3ffb6dfea3ea50fe446d53c4
Copyright registration time
2026-07-06T04:47:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:6ff5f6d1ee3e2f44a7689bd0328a3ceb3d847d5f27b831120abc40c86d492ee9

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.