# Y&D Holdings

> Type: Organization (business)
> Verification: strong
> Last updated: 2026-05-24
> Canonical: https://ida.washinmura.jp/prtimes-174345

## Summary (PII-redacted)
AIRAは、AIと人間の創造性を融合したグローバル音楽プロジェクト。11人のシンガーが同一楽曲「Let it Echo」を多言語で歌い、AIがSNS分析と投票で「Queen」を選出。日本語版・韓国語版を5月2日リリース。

## Summary (English, PII-redacted)
AIRA is a global music project fusing AI and human creativity. 11 singers perform the same song 'Let it Echo' in different languages, with AI analyzing SNS and voting to select the 'Queen'. Japanese and Korean versions released on May 2.

## Summary (繁體中文, PII-redacted)
AIRA 是一個融合 AI 與人類創造力的全球音樂專案。11 位歌手以不同語言演唱同一首歌曲《Let it Echo》，AI 透過分析社群媒體與投票數據選出英文版主唱「Queen」。日語版與韓語版於 5 月 2 日發行。

## Company
- Trade name: Y&D Holdings
- Country: JP

## Social Presence
- owned_domain: https://www.aira-project.com (strong, confidence 0.88)

## AI Agent Resources
- Profile page: https://ida.washinmura.jp/prtimes-174345
- JSON API: https://ida.washinmura.jp/api/v1/entity/prtimes-174345
- 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=Y%26D%20Holdings&entity=prtimes-174345

## 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": "2026-05-24T01:51:01.636Z",
    "expires_at": null,
    "is_stale": null,
    "source": "entity.last_updated"
  },
  "provenance": {
    "source": "tqaeo.public.ida_entities_public.public_ids.owner_published",
    "generated_at": "2026-06-13T19:49:06.293Z",
    "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

<!-- Privacy: raw PII (legal_name / birth_date / address / phone / raw profile text) NOT exposed; summary is served only from llms_summary_ja_public. -->