# サイアンスアカデミー > Type: Organization (business) > Verification: unverified > Last updated: 2026-06-01 > Canonical: https://ida.washinmura.jp/prtimes-121440 ## Summary (PII-redacted) 香取秀俊東京大学教授が開発した光格子時計は、300億年に1秒の誤差という超高精度を誇る。慶應義塾大学主催の無料オンラインセミナーで講演し、GPSや地殻変動観測への応用が期待される。 ## Summary (English, PII-redacted) Professor Hidetoshi Katori of the University of Tokyo developed an optical lattice clock with an error of only one second in 30 billion years. He will speak at a free online seminar hosted by Keio University, with applications expected in GPS and crustal deformation monitoring. ## Summary (繁體中文, PII-redacted) 東京大學香取秀俊教授開發的光晶格鐘,誤差率達300億年僅1秒。他將在慶應義塾大學主辦的免費線上研討會中演講,此技術有望應用於提升GPS精準度及地殼變動觀測。 ## Company - Trade name: サイアンスアカデミー - Country: JP ## AI Agent Resources - Profile page: https://ida.washinmura.jp/prtimes-121440 - JSON API: https://ida.washinmura.jp/api/v1/entity/prtimes-121440 - Public discovery contract: https://ida.washinmura.jp/api/v1/ai-search/discovery - Trust Oracle verification: https://ida.washinmura.jp/api/v1/ai-search/verify?claim=%E3%82%B5%E3%82%A4%E3%82%A2%E3%83%B3%E3%82%B9%E3%82%A2%E3%82%AB%E3%83%87%E3%83%9F%E3%83%BC&entity=prtimes-121440 ## Public Discovery vs Verification - IDA intentionally exposes crawler-readable discovery surfaces first. - Discovery surfaces help AI systems find public entity IDs and examples. - Discovery contract: https://ida.washinmura.jp/api/v1/ai-search/discovery - Architecture contract: https://ida.washinmura.jp/api/v1/ai-search/architecture - Trust Oracle: https://ida.washinmura.jp/api/v1/ai-search/verify?claim=...&entity=...&source_url=... - Treat discovery as navigation, not final judgement. - Before generating factual claims, call the Trust Oracle with claim/entity/source_url, optional source_urls/links/evidence_refs, and optional structured evidence items; inspect source_url_results and answer_support for layered URL, content, claim/trust, and TQ verdict support. - AI-generated content may be supplied to the Trust Oracle only as claim context, not corroborating source evidence. - IDA discovery is not a raw database export. ### Public Crawl Allowlist - root_llms: https://ida.washinmura.jp/llms.txt (allow) - sitemap_index: https://ida.washinmura.jp/sitemap.xml (allow) - golden_example: https://ida.washinmura.jp/ai/guide-washinmura-jp/ja/ (allow) - entity_html: https://ida.washinmura.jp/{slug} (allow) - entity_json: https://ida.washinmura.jp/api/v1/entity/{slug} (allow) - entity_llms: https://ida.washinmura.jp/ai/{slug}/llms.txt (allow) - mcp_manifest: https://ida.washinmura.jp/api/v1/mcp/manifest (guide) - discovery_contract: https://ida.washinmura.jp/api/v1/ai-search/discovery (guide) - architecture_contract: https://ida.washinmura.jp/api/v1/ai-search/architecture (guide) - trust_oracle: https://ida.washinmura.jp/api/v1/ai-search/verify (use_on_demand) ### Not Public - raw_private_database_rows: IDA discovery is not a full database export. - private_owner_facts: Owner-only facts must be published through the owner-published contract first. - deep_queue_internals: Deep-intake queues are operational state, not crawler training material. - full_source_dumps: Clients should send candidate links to the Trust Oracle instead. - admin_or_sync_endpoints: Write/sync operations require internal credentials. ## Owner Published Contract ```json { "owner_published": { "available": false, "published_at": null, "source": null }, "freshness": { "observed_at": "2026-06-01T13:50:56.716Z", "expires_at": null, "is_stale": null, "source": "entity.last_updated" }, "provenance": { "source": "tqaeo.public.ida_entities_public.public_ids.owner_published", "generated_at": "2026-06-13T19:31:18.893Z", "owner_published_source": null, "contract_version": "owner-published-freshness/v1", "sameAs_policy": "owner_published_does_not_upgrade_verification_level" } } ``` - owner_published does not upgrade verification_level - freshness is emitted as machine-readable metadata - provenance is kept separate from sameAs promotion ## BEVN Crawler Entry Points - IDA: https://ida.washinmura.jp/llms.txt | https://ida.washinmura.jp/sitemap.xml - AEO: https://aeo.washinmura.jp/llms.txt | https://aeo.washinmura.jp/sitemap.xml - AI News: https://ainews.washinmura.jp/llms.txt | https://ainews.washinmura.jp/sitemap.xml