Evidence row 3047705

Observed 4 Nov 2026, 18:24 UTC, by sync.agentic_market/1.

Kind: listing
About: source_record agentic_market:tabularium-matt-3e0-workers-dev
Recorded: 4 Nov 2026, 18:24 UTC
Previous row: #2623355
Body SHA-256: dbd3237d170d51c10b1586e329f88b364d9963aa890dfdb9cf143751c6fa36e7
Leaf: 0xf9cbc5759eb3b1e681646faf47579121d4c4e4ad6500f29389c86670bbf45832

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/export"
    ],
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/mcp"
    ],
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/read"
    ],
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/renew"
    ],
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/snapshot/fetch"
    ],
    [
      "x402",
      "https://tabularium.matt-3e0.workers.dev/write"
    ]
  ],
  "name": "tabularium.matt-3e0.workers.dev",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "tabularium.matt-3e0.workers.dev",
    "endpoints": [
      {
        "description": "Agent memory: export the full signed history and current values of the paying wallet's persistent key-value store, for backup or proof. The export verifies offline against the public key in /menu, with no trust in the server. The optional since parameter returns only newer entries.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 0,
            "group": "query",
            "name": "since",
            "required": false,
            "type": "number"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "49",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Tabularium",
        "tags": [
          "agent-memory",
          "storage",
          "verifiable",
          "hash-chain",
          "key-value"
        ],
        "url": "https://tabularium.matt-3e0.workers.dev/export"
      },
      {
        "description": "Agent memory: export the full signed history and current values of the paying wallet's persistent key-value store, for backup or proof. The export verifies offline against the public key in /menu, with no trust in the server. The optional since parameter returns only newer entries.",
        "method": "",
        "parameters": [],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://tabularium.matt-3e0.workers.dev/mcp#tabularium_export"
      },
      {
        "description": "Agent memory: read the latest value for a key from the paying wallet's persistent key-value store, with its signed hash-chain entry. Reads keep working through the 90-day grace period after the term ends. A missing key returns 404 and is not charged.",
        "method": "",
        "parameters": [],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://tabularium.matt-3e0.workers.dev/mcp#tabularium_read"
      },
      {
        "description": "Agent memory: keep the paying wallet's persistent key-value store for 30 more days, counted from the later of now or its current expiry. A free pre-check rejects a wallet with no workspace before any charge.",
        "method": "",
        "parameters": [],
        "pricing": {
          "amount": "0.25",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://tabularium.matt-3e0.workers.dev/mcp#tabularium_renew"
      },
      {
        "description": "Returns the page's readable text plus an Ed25519-signed record (final URL after redirects, fetch time, status, sha256 of the body and of the text) that verifies offline. Charged only for 2xx text pages; refused URLs cost nothing.",
        "method": "",
        "parameters": [],
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://tabularium.matt-3e0.workers.dev/mcp#tabularium_snapshot_fetch"
      },
      {
        "description": "Agent memory: save a value under a key in a persistent key-value store owned by the paying wallet. The first write opens a 30-day workspace. Memory survives restarts, new machines and hand-offs between agents. Every write is hash-chained and signed (Ed25519), so the history verifies offline. Values up to 64 KB; failed writes are not charged.",
        "method": "",
        "parameters": [],
        "pricing": {
          "amount": "0.003",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://tabularium.matt-3e0.workers.dev/mcp#tabularium_write"
      },
      {
        "description": "Agent memory: read the latest value for a key from the paying wallet's persistent key-value store, with its signed hash-chain entry. Reads keep working through the 90-day grace period after the term ends. A missing key returns 404 and is not charged.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "notes/today",
            "group": "query",
            "name": "key",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "68",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Tabularium",
        "tags": [
          "agent-memory",
          "storage",
          "verifiable",
          "hash-chain",
          "key-value"
        ],
        "url": "https://tabularium.matt-3e0.workers.dev/read"
      },
      {
        "description": "Extends the paying wallet's workspace by 30 days from the later of now or its expiry.",
        "method": "POST",
        "parameters": [],
        "pricing": {
          "amount": "0.25",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "8",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Tabularium",
        "tags": [
          "agent-memory",
          "storage",
          "verifiable",
          "hash-chain",
          "key-value"
        ],
        "url": "https://tabularium.matt-3e0.workers.dev/renew"
      },
      {
        "description": "Returns the page's readable text plus an Ed25519-signed record (final URL after redirects, fetch time, status, sha256 of the body and of the text) that verifies offline. Charged only for 2xx text pages; refused URLs cost nothing.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/",
            "group": "body",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "Tabularium Snapshot",
        "tags": [
          "web-fetch",
          "scraping",
          "verifiable",
          "signed",
          "citations"
        ],
        "url": "https://tabularium.matt-3e0.workers.dev/snapshot/fetch"
      },
      {
        "description": "Agent memory: save a value under a key in a persistent key-value store owned by the paying wallet. The first write opens a 30-day workspace. Memory survives restarts, new machines and hand-offs between agents. Every write is hash-chained and signed (Ed25519), so the history verifies offline. Values up to 64 KB; failed writes are not charged.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "retry-7f3a",
            "group": "body",
            "name": "idempotency_key",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "notes/today",
            "group": "body",
            "name": "key",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Met the supplier; follow up Friday.",
            "group": "body",
            "name": "value",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.003",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "103",
          "l30DaysUniquePayers": "8"
        },
        "serviceName": "Tabularium",
        "tags": [
          "agent-memory",
          "storage",
          "verifiable",
          "hash-chain",
          "key-value"
        ],
        "url": "https://tabularium.matt-3e0.workers.dev/write"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "tabularium-matt-3e0-workers-dev",
    "integrationType": "",
    "isNew": false,
    "name": "tabularium.matt-3e0.workers.dev",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.054",
      "currency": "USDC",
      "maxAmount": "0.25",
      "minAmount": "0.002"
    },
    "provider": "tabularium.matt-3e0.workers.dev",
    "providerUrl": "",
    "serviceName": "Tabularium",
    "tags": [
      "agent-memory",
      "storage",
      "verifiable",
      "hash-chain",
      "key-value",
      "web-fetch",
      "scraping",
      "signed",
      "citations"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"dbd3237d170d51c10b1586e329f88b364d9963aa890dfdb9cf143751c6fa36e7","id":3047705,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793816687227108,"prev":2623355,"subject":"agentic_market:tabularium-matt-3e0-workers-dev","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).
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Day root: 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
Chained: 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
Published: On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345

How to check it · This row as JSON