Evidence row 523190

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Create a downloadable PNG greeting with occasion-matched background, curated phrases and optional decorations. Optional first name is rendered in this response only. Creates a reusable design link without the name, available to anyone with the link for 30 days. Free with watermark. Does not post to social networks.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "background": {
            "default": "auto",
            "description": "auto matches the occasion; other categories still obey cultural safety rules.",
            "enum": [
              "auto",
              "all",
              "nature",
              "flowers",
              "animals",
              "coffee",
              "celebration",
              "Mare",
              "Laghi",
              "Fiumi",
              "Cascate",
              "Montagne",
              "Boschi",
              "Deserti",
              "Neve",
              "Cieli",
              "Prati"
            ],
            "type": "string"
          },
          "decorations": {
            "default": "random",
            "enum": [
              "random",
              "none"
            ],
            "type": "string"
          },
          "format": {
            "default": "4:5",
            "enum": [
              "9:16",
              "4:5",
              "1:1",
              "16:9"
            ],
            "type": "string"
          },
          "locale": {
            "default": "en",
            "description": "Language code; hi is Hindi. Use list_greeting_options for supported languages.",
            "enum": [
              "it",
              "en",
              "fr",
              "es",
              "de",
              "pt",
              "ar",
              "zh",
              "ja",
              "ko",
              "th",
              "ru",
              "hi",
              "el",
              "he"
            ],
            "type": "string"
          },
          "name": {
            "default": "",
            "description": "Optional first name, up to 30 characters. Omit sensitive or identifying details. Never stored with a shared design.",
            "maxLength": 100,
            "type": "string"
          },
          "occasion": {
            "default": "morning",
            "enum": [
              "morning",
              "afternoon",
              "evening",
              "night",
              "birthday",
              "congratulations",
              "christmas",
              "newyear",
              "lunarnewyear",
              "mothersday",
              "fathersday",
              "weddinganniversary",
              "anniversary",
              "ramadan",
              "eid",
              "thankyou",
              "getwell",
              "wedding",
              "newbaby",
              "graduation",
              "baptism",
              "firstcommunion",
              "confirmation",
              "barmitzvah",
              "hanukkah",
              "roshhashanah",
              "pesach",
              "eidaladha",
              "diwali",
              "vesak"
            ],
            "type": "string"
          },
          "previousCodes": {
            "default": [],
            "description": "Recent phrase codes from this conversation to avoid repeats; do not send chat history.",
            "items": {
              "maxLength": 100,
              "pattern": "^[a-z]+:[a-z]+:\\d+:\\d+:\\d+(?::(?:sweet|cheerful|simple|motivational))?$",
              "type": "string"
            },
            "maxItems": 30,
            "type": "array"
          },
          "style": {
            "default": "sweet",
            "description": "Writing and visual style: sweet and tender, cheerful, simple and elegant, or motivational. The selected style changes the actual greeting wording.",
            "enum": [
              "sweet",
              "cheerful",
              "simple",
              "motivational"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "create_greeting_card"
    },
    {
      "description": "Generate a short, coherent, family-friendly greeting for an occasion. Returns complete phrases from curated language collections. Optional first name stays transient. Does not send or publish anything.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "locale": {
            "default": "en",
            "description": "Language code; hi is Hindi. Use list_greeting_options for supported languages.",
            "enum": [
              "it",
              "en",
              "fr",
              "es",
              "de",
              "pt",
              "ar",
              "zh",
              "ja",
              "ko",
              "th",
              "ru",
              "hi",
              "el",
              "he"
            ],
            "type": "string"
          },
          "name": {
            "default": "",
            "description": "Optional first name, up to 30 characters. Omit sensitive or identifying details. Never stored with a shared design.",
            "maxLength": 100,
            "type": "string"
          },
          "occasion": {
            "default": "morning",
            "enum": [
              "morning",
              "afternoon",
              "evening",
              "night",
              "birthday",
              "congratulations",
              "christmas",
              "newyear",
              "lunarnewyear",
              "mothersday",
              "fathersday",
              "weddinganniversary",
              "anniversary",
              "ramadan",
              "eid",
              "thankyou",
              "getwell",
              "wedding",
              "newbaby",
              "graduation",
              "baptism",
              "firstcommunion",
              "confirmation",
              "barmitzvah",
              "hanukkah",
              "roshhashanah",
              "pesach",
              "eidaladha",
              "diwali",
              "vesak"
            ],
            "type": "string"
          },
          "previousCodes": {
            "default": [],
            "description": "Recent phrase codes from this conversation to avoid repeats; do not send chat history.",
            "items": {
              "maxLength": 100,
              "pattern": "^[a-z]+:[a-z]+:\\d+:\\d+:\\d+(?::(?:sweet|cheerful|simple|motivational))?$",
              "type": "string"
            },
            "maxItems": 30,
            "type": "array"
          },
          "style": {
            "default": "sweet",
            "description": "Writing and visual style: sweet and tender, cheerful, simple and elegant, or motivational. The selected style changes the actual greeting wording.",
            "enum": [
              "sweet",
              "cheerful",
              "simple",
              "motivational"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "generate_greeting"
    },
    {
      "description": "List supported greeting languages, occasions, styles, image formats and background categories. No personal data required.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_greeting_options"
    }
  ]
}

What the leaf hashes

{"body":"4eecd7c6f7b58ea7f5b51e17fcc79435c67c6ad2b918a0fa33a60bb179c309b8","id":523190,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793124181199296,"prev":null,"subject":"049885be-fb2c-4623-a547-407c84530441","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x15a7781610a95d2d7763826dc616066608931d2d2f561525ec6782f71ab7dc1b
2. 0x4950c670ac79bec5445fb929c3e238b6935f15cc5f668252ed73af94c1cb1bdf
3. 0x093788d7d7e1abf4da36cff8fbefc486e998d712de92340918cc929fc1c3e178
4. 0x1bac0dc201cef1246189bf28d9c2b7f2ba72477124a08c60b8ddd2ebedb4d00c
5. 0x196fb1434a2b7510f5365c0ea885b4a1e5d48264296e423eaa3c7773a579a448
6. 0x11fa890dfd531af90fecd1697dce96c3ea1824dd844c80ae440d0be79a3a3ef8
7. 0xda500e2ff67f6e2775e3a17dda7951d0eb51314b810a7750cd9b72eb5ed2a2bf
8. 0xff6793160e2f558b15f6ceaccd698b132b891e9345dc674c0c4f933364d0369c
9. 0x0a41e59a78b6f5426a120434ba561961102620736104661c77a25fa7ca0a02e6
10. 0x4a82788793fd3e02fe30ac42a0dd9efc4136c766f40fe1d668457775063fde1a
11. 0x2411fd1200bf89d8ff055caa7169e7277146641f1fe49ae06d70e19279a209e0
12. 0x62c7e7967ec467dcf70ca9a9f01831f05b5b4a07c07491cc03340b1479c7ea31
13. 0xfae7ed2d06f4d6ced86c104b6381c26d795f82be10e6314b53b0524bd75a292f
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4