{
    "system": "GoGuides Verified Text",
    "api_version": "verified-text-v1",
    "status": "ok",
    "response_type": "verified_text_record",
    "source_key": "britannica_1911",
    "source_title": "Encyclopaedia Britannica (1911)",
    "license_code": "public_domain",
    "attribution": null,
    "license_url": null,
    "chunk_id": "1911:hydrastine:bea3b758da7d",
    "title": "HYDRASTINE",
    "section": null,
    "hash_alg": "sha256",
    "hash_sha256": "d2fbc3d9448c1e664de3b591d35c16b7c98cffe7a9ff92c14de934c2447e7b5f",
    "normalizer": {
        "name": "ggnorm",
        "version": "1.0"
    },
    "verified_text": "hydrastine, c21h21no6, an alkaloid found with berberine in the root of golden seal, _hydrastis canadensis_, a plant indigenous to north america. it was discovered by durand in 1851, and its chemistry formed the subject of numerous communications by e. schmidt and m. freund (see _ann._, 1892, 271, p. 311) who, aided by p. fritsch (_ann._, 1895, 286, p. 1), established its constitution. it is related to narcotine, which is methoxy hydrastine. the root of golden seal is used in medicine under the name hydrastis rhizome, as a stomachic and nervine stimulant.",
    "source_url": "https://archive.org/details/EB1911WMF",
    "observed_at": "2026-02-08 18:43:12",
    "integrity": {
        "hash_check": "match",
        "hash_scope": "full_normalized_text",
        "computed_sha256": "d2fbc3d9448c1e664de3b591d35c16b7c98cffe7a9ff92c14de934c2447e7b5f"
    },
    "machine_use": {
        "read": true,
        "cite": true,
        "decision": "verified_public_domain_text"
    },
    "goguides_data_license": "https://www.goguides.com/data-license",
    "goguides_data_license_version": "2.0",
    "documentation": {
        "white_paper_url": "https://www.goguides.com/white-paper.php",
        "pdf_url": "https://www.goguides.com/whitepapers/goguides-ai-source-clearance-white-paper.pdf"
    }
}