海を見つめて

Recording by Off Course.

Recording identifiers

ISRC
JPTO07818210
CopyrightID (CopyrightChains transaction hash)
0x9ea5420a3fd3e51a4a7c24d48b7ac027e8d97718d5b6b42894375aae49d3b7e0
Copyright registration time
2026-07-07T14:56:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:863cba8cb55441e1b323a8af2fa4b5a29d4b527540951ebb5780aec54362a6d6

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.