{
  "log_key": "hetu2027.trustasia.com/hetu2027",
  "description": "TrustAsia 'HETU2027'",
  "operator": "TrustAsia",
  "checkpoint_url": "https://hetu2027.trustasia.com/hetu2027/ct/v1/get-sth",
  "checkpoint_format": "ct_v1_sth",
  "signature_scheme": "ecdsa_p256_ct_v1",
  "key_source_url": "https://www.gstatic.com/ct/log_list/v3/log_list.json",
  "limbs": {
    "log_listed_in_a_public_list": {
      "outcome": "ok",
      "listed_in": "Google Chrome CT log list v3"
    },
    "public_key_obtained_independently_of_the_log": {
      "outcome": "ok",
      "key_source": "https://www.gstatic.com/ct/log_list/v3/log_list.json"
    },
    "checkpoint_endpoint_answers_without_credentials": {
      "outcome": "ok",
      "status": 200,
      "bytes": 239
    },
    "checkpoint_parses_in_its_declared_format": {
      "outcome": "ok",
      "format": "ct_v1_sth"
    },
    "checkpoint_carries_tree_size_and_root_hash": {
      "outcome": "ok",
      "tree_size": 46928816,
      "root_hash": "18602a11b905f210f47af017d4582d0eb2d22177eed0770283c546cd9653847e"
    },
    "checkpoint_carries_a_signature": {
      "outcome": "ok",
      "signature_lines": 1
    },
    "signature_scheme_supported_by_this_monitor": {
      "outcome": "ok",
      "scheme": "ecdsa_p256_ct_v1"
    },
    "signature_verifies_against_the_published_key": {
      "outcome": "ok",
      "scheme": "ecdsa_p256_ct_v1"
    },
    "checkpoint_carries_witness_cosignatures": {
      "outcome": "fail",
      "reason": "checkpoint_carried_no_signature_beyond_the_log_own",
      "attribution": "publisher",
      "note": "A Certificate Transparency signed tree head has no place to carry a witness cosignature, so this is a fact about the format as much as about the log."
    },
    "prior_batch_checkpoint_on_record": {
      "outcome": "ok",
      "prior_read_at": "2026-08-02T05:34:50.805706+00:00",
      "prior_tree_size": 46928430
    },
    "second_read_answered": {
      "outcome": "ok",
      "tree_size": 46928913
    },
    "tree_did_not_shrink_between_reads": {
      "outcome": "ok",
      "first_size": 46928816,
      "second_size": 46928913,
      "entries_added": 97
    },
    "consistency_proof_served": {
      "outcome": "ok",
      "nodes": 14
    },
    "consistency_proof_recomputes_to_the_second_root": {
      "outcome": "ok",
      "reason": "both_roots_recomputed",
      "first_size": 46928816,
      "second_size": 46928913,
      "proof_nodes": 14
    }
  },
  "evidence": {
    "first_read": {
      "url": "https://hetu2027.trustasia.com/hetu2027/ct/v1/get-sth",
      "status": 200,
      "error": null,
      "bytes": 239,
      "read_at": "2026-08-02T05:42:55.061083+00:00",
      "body_sha256": "10fc87e89a582a3cc24fb3786b47bd1434e44aaf1f0f160d85641a7bf8e00175",
      "parsed": true,
      "format": "ct_v1_sth",
      "tree_size": 46928816,
      "timestamp": 1785649157247,
      "signature_lines": 1,
      "root_hash_hex": "18602a11b905f210f47af017d4582d0eb2d22177eed0770283c546cd9653847e",
      "raw_body": null
    },
    "signature_check": {
      "supported": true,
      "verified": true,
      "scheme": "ecdsa_p256_ct_v1"
    },
    "prior_batch": {
      "log_key": "hetu2027.trustasia.com/hetu2027",
      "read": "second_read",
      "read_at": "2026-08-02T05:34:50.805706+00:00",
      "tree_size": 46928430,
      "root_hash": "58d6f58d22f1f4cb94fce810def086e3cf675eef6791cb4cc2288f989a5966fa",
      "body_sha256": "71c93c15483874582de37bb8958d77f81f49f3c8b2b51fb37d07c77958e1dca8"
    },
    "second_read": {
      "url": "https://hetu2027.trustasia.com/hetu2027/ct/v1/get-sth",
      "status": 200,
      "error": null,
      "bytes": 243,
      "read_at": "2026-08-02T05:43:56.616797+00:00",
      "body_sha256": "1318540a906cc12c0bb047c43c245cf8acc2ea5124b61be21c33fa465ab56d43",
      "parsed": true,
      "format": "ct_v1_sth",
      "tree_size": 46928913,
      "timestamp": 1785649277876,
      "signature_lines": 1,
      "root_hash_hex": "105830992f56bc3efdd5eb63d193d9bd1e57b085219316cd68cbefd4668acea7"
    },
    "consistency_request": {
      "served": true,
      "url": "https://hetu2027.trustasia.com/hetu2027/ct/v1/get-sth-consistency?first=46928816&second=46928913",
      "proof": [
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        "377712aa71ee921c672ae2048900663446aa58f75b3e39dda707887cbb1b992f",
        "53709e89c84ba5e3eeeeb987e62256f85214002a177b49dc3492b707ba996aa3",
        "1b7ffb8a4f7a2c4e66dbc4b2253b53fcd6f61492b82e4a544724aa20e69801e5",
        "0d864ed2880dd6400a6fc0083470d1b00c2819aa14569d1f2c924124c2ced5ad",
        "c2ed81d474ccd4f7eee831014bc9b3e3644c89c0a9ab73acc5942ec3c0c3420c",
        "54588ef3fb2212dd1a224435a0900cb66a9a87b276b9d302799173f8393f7ecc",
        "10fb4894001af4a47f5037f18e323e9e84626e0cdaf3263c6c13a0357f548960",
        "26be13ec48508de70b832100cab97eedef4c69cad9c6f6633d7c9300e45b0e2c",
        "21a26c83200eb49dcf509ce4c4cd33cc1834d8ec931888e3fab3f46d0144ecfc",
        "baac03506148bf05b53d6eefe7f6a2a357e0e9ddb2e91e9753fb7cdeb79e6721",
        "3b3e57c8df5ebaf5d776af2ce4004a19b37ee03eb106d88d159ed8153cd7eda4"
      ],
      "nodes": 14
    }
  },
  "tree_advanced_between_reads": true,
  "entries_added_between_reads": 97,
  "checked_at": "2026-08-02T05:43:57.759086+00:00",
  "must_admit": true,
  "full_admit": true,
  "refuse_limb": null,
  "refuse_reason": null,
  "attribution": null,
  "must_limbs_failed": [],
  "should_limbs_failed": [],
  "receipt_filename": "hetu2027.trustasia.com_hetu2027.json",
  "ledger": "https://geniusflow-federation.vercel.app/tlog/ledger.json",
  "ledger_digest": "1e9ae859e742abe6cfb6dabb7e5d337cba88d3f3cc0715ceb8a5a9bdc3821603",
  "expectations_digest": "78cb2f5444df2da26462e17070ab9e421ae85b30a8ec1ed672ea21cddeb34290"
}