Evidence row 278409

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://sellat.app/api/v2/proofs"
    ],
    [
      "x402",
      "https://sellat.app/api/v2/proofs/:id/qualified"
    ]
  ],
  "name": "sellat.app",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "sellat.app",
    "endpoints": [
      {
        "description": "Timestamp and notarize any file or data by its SHA-256 hash: blockchain proof of existence and document integrity, anchored on Polygon in minutes and attested on Bitcoin (OpenTimestamps); blockchain notarization, not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove that exact data existed by now and is intact.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "62f9ea556738ce32cb740ea94b8ea1ba6355967065d7cb314a617a679d190091",
            "group": "body",
            "name": "hash",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "metadata",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "sellat-example-20261026141802-21a0e997.txt",
            "group": "body",
            "name": "name",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "10",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Sellat",
        "tags": [
          "timestamp",
          "notarize",
          "proof-of-existence",
          "eidas",
          "qualified-timestamp"
        ],
        "url": "https://sellat.app/api/v2/proofs"
      },
      {
        "description": "eIDAS qualified electronic timestamp (RFC 3161 .tsr) on a Sellat proof, issued in seconds by an EU qualified trust service provider on the EU trusted list. Legal timestamp with the presumption of accuracy of date and integrity of Art. 41.2 eIDAS, recognised across the EU. Use when the date must hold before a court, authority, regulator or auditor. Call it on the proof_id from POST /proofs.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "ce6b775b-d544-4693-a0de-127bde270a1e",
            "group": "path",
            "name": "id",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.9",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Sellat",
        "tags": [
          "timestamp",
          "notarize",
          "proof-of-existence",
          "eidas",
          "qualified-timestamp"
        ],
        "url": "https://sellat.app/api/v2/proofs/:id/qualified"
      }
    ],
    "enriched": false,
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792345485/bazaar-icons/bde6353fd8b55735.png",
    "id": "sellat-app",
    "integrationType": "",
    "isNew": false,
    "name": "sellat.app",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.455",
      "currency": "USDC",
      "maxAmount": "0.9",
      "minAmount": "0.01"
    },
    "provider": "sellat.app",
    "providerUrl": "",
    "serviceName": "Sellat",
    "tags": [
      "timestamp",
      "notarize",
      "proof-of-existence",
      "eidas",
      "qualified-timestamp"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"00c4220b7be0b0afc09f99597f3ff031c881ee04e9b2407deed379a2106b6841","id":278409,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793042067442250,"prev":261403,"subject":"agentic_market:sellat-app","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x5e567c482d4299c0bed3638efdabb88f1e75923489ff2c847a6bbc07b581b3c3
2. 0x8d724faf1b83e5ab01e1350e4bc925dd09508291702c8cd363506f2a7eb675c8
3. 0xdf10091e01922c7a3950626e6546afbbfa5817d1d5a845547d3719ad5764956e
4. 0x48f18b88ba3340b9f929fa073806fe06495a1f1f7a0d0cf2a2507761d0b7f1b1
5. 0x71ad60a5b8f17911f96ec5d39c9dc81d46198ae84a5061bae7e21da5af362fdc
6. 0x1728378c1776c644fe8f723b09dbeb1bb483a98170290035170a79adb527b434
7. 0xdc3c70dbe225409fe50e2ab6942c66c7b8f929919032d36872ff872dec79463f
8. 0xdf3d7d1bf2070686bdcd2f9fdc02f7a7b84f27f6842c6e33e8a2a45385d5d9f5
9. 0x77163b46f4e52a08632ea8c24bbe9055658e8322d1f228a48ab784b218719e7a
10. 0x33f025c13618ed53fc05a5cb528fef06abae42e7afa58ecfa04868e98e6879bf
11. 0x49cc8f2035ca48165d187499d4442647d0afe9d3c61547728b03e4a0494752eb
12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae