Evidence row 1245256

What was observed

{
  "count": 19,
  "tools": [
    {
      "description": "The full credit book with per-credit and book-wide mass conservation totals.",
      "inputSchema": {
        "properties": {},
        "title": "bookArguments",
        "type": "object"
      },
      "name": "book"
    },
    {
      "description": "Retire mass_g of verified credits for a buyer: cheapest-first matching,\n    exactly-once (idempotent on purchase_id), returns a content-addressed\n    offset certificate with per-fill costs. Payment settles via escrow.\n    dry_run=true previews the exact fills/cost without mutating the book.",
      "inputSchema": {
        "properties": {
          "buyer": {
            "title": "Buyer",
            "type": "string"
          },
          "dry_run": {
            "default": false,
            "title": "Dry Run",
            "type": "boolean"
          },
          "mass_g": {
            "title": "Mass G",
            "type": "integer"
          },
          "purchase_id": {
            "title": "Purchase Id",
            "type": "string"
          }
        },
        "required": [
          "buyer",
          "purchase_id",
          "mass_g"
        ],
        "title": "buy_offsetArguments",
        "type": "object"
      },
      "name": "buy_offset"
    },
    {
      "description": "Money-denominated offset purchase: retire the maximum cheapest-first\n    verified mass whose exact cost fits inside budget_minor (never overspends).\n    Built for callers whose restoration obligation is a currency amount —\n    e.g. a revenue share accrued in a ledger. Idempotent on purchase_id;\n    dry_run=true previews without mutating.",
      "inputSchema": {
        "properties": {
          "budget_minor": {
            "title": "Budget Minor",
            "type": "integer"
          },
          "buyer": {
            "title": "Buyer",
            "type": "string"
          },
          "dry_run": {
            "default": false,
            "title": "Dry Run",
            "type": "boolean"
          },
          "purchase_id": {
            "title": "Purchase Id",
            "type": "string"
          }
        },
        "required": [
          "buyer",
          "purchase_id",
          "budget_minor"
        ],
        "title": "buy_offset_budgetArguments",
        "type": "object"
      },
      "name": "buy_offset_budget"
    },
    {
      "description": "Freeze the current disbursement schedule into a certified, tamper-evident\n    batch (content-addressed, hash-chained). Idempotent on batch_id; only\n    newly-accrued proceeds for verified projects are certified (never disbursed\n    twice). This is the certified investment record the CEO executes the actual\n    Stripe transfers against.",
      "inputSchema": {
        "properties": {
          "batch_id": {
            "title": "Batch Id",
            "type": "string"
          }
        },
        "required": [
          "batch_id"
        ],
        "title": "certify_disbursementArguments",
        "type": "object"
      },
      "name": "certify_disbursement"
    },
    {
      "description": "Admin operation: remove a credit from the active fill path while\n    retaining its listing and retirement history for audit. Idempotent for an\n    already-delisted credit. Gateway state-change authentication is required.",
      "inputSchema": {
        "properties": {
          "credit_id": {
            "title": "Credit Id",
            "type": "string"
          },
          "reason": {
            "title": "Reason",
            "type": "string"
          }
        },
        "required": [
          "credit_id",
          "reason"
        ],
        "title": "delist_creditArguments",
        "type": "object"
      },
      "name": "delist_credit"
    },
    {
      "description": "Describe this agent: name, version, purpose, every action it supports\n    and the inputs each one takes. Read-only and free; call it first to learn\n    how to use this server.",
      "inputSchema": {
        "properties": {},
        "title": "describe_agentArguments",
        "type": "object"
      },
      "name": "describe_agent"
    },
    {
      "description": "Automated disbursement preview: for each verified restoration project,\n    splits its newly-accrued proceeds into the Viridis Conservation withhold\n    (default 15%, seeds the software/business) and the project payout (85%).\n    Read-only. Funded-but-unregistered projects are surfaced separately as\n    pending_registration (can't pay an unverified project).",
      "inputSchema": {
        "properties": {
          "project_id": {
            "default": "",
            "title": "Project Id",
            "type": "string"
          }
        },
        "title": "disbursement_scheduleArguments",
        "type": "object"
      },
      "name": "disbursement_schedule"
    },
    {
      "description": "Fetch a past purchase / offset certificate by id.",
      "inputSchema": {
        "properties": {
          "purchase_id": {
            "title": "Purchase Id",
            "type": "string"
          }
        },
        "required": [
          "purchase_id"
        ],
        "title": "get_purchaseArguments",
        "type": "object"
      },
      "name": "get_purchase"
    },
    {
      "description": "List a conservation credit on the book. verification_ref (a D-Score /\n    land-verification attestation) is REQUIRED — unverified credits cannot\n    enter the book. To trade on the Verra network, pass registry=\"verra\" with\n    the VCS provenance (vcs_project_id, serial_number, vintage, methodology) so\n    retirements are cross-referenceable on registry.verra.org.",
      "inputSchema": {
        "properties": {
          "issuer": {
            "title": "Issuer",
            "type": "string"
          },
          "mass_g": {
            "title": "Mass G",
            "type": "integer"
          },
          "methodology": {
            "default": "",
            "title": "Methodology",
            "type": "string"
          },
          "price_minor_per_kg": {
            "title": "Price Minor Per Kg",
            "type": "integer"
          },
          "project_id": {
            "title": "Project Id",
            "type": "string"
          },
          "registry": {
            "default": "",
            "title": "Registry",
            "type": "string"
          },
          "serial_number": {
            "default": "",
            "title": "Serial Number",
            "type": "string"
          },
          "vcs_project_id": {
            "default": "",
            "title": "Vcs Project Id",
            "type": "string"
          },
          "verification_ref": {
            "title": "Verification Ref",
            "type": "string"
          },
          "vintage": {
            "default": "",
            "title": "Vintage",
            "type": "string"
          }
        },
        "required": [
          "issuer",
          "project_id",
          "mass_g",
          "price_minor_per_kg",
          "verification_ref"
        ],
        "title": "list_creditArguments",
        "type": "object"
      },
      "name": "list_credit"
    },
    {
      "description": "List all registered restoration projects with their metadata.",
      "inputSchema": {
        "properties": {},
        "title": "list_projectsArguments",
        "type": "object"
      },
      "name": "list_projects"
    },
    {
      "description": "Buyer's carbon position: emitted (from agent-compute-ledger) minus\n    retired. carbon_accountable == true when fully offset.",
      "inputSchema": {
        "properties": {
          "buyer": {
            "title": "Buyer",
            "type": "string"
          },
          "emitted_g": {
            "title": "Emitted G",
            "type": "number"
          }
        },
        "required": [
          "buyer",
          "emitted_g"
        ],
        "title": "net_positionArguments",
        "type": "object"
      },
      "name": "net_position"
    },
    {
      "description": "Supply-side disbursement ledger: how much each restoration project has\n    earned from retirements and is owed (gross_proceeds_minor + retired_g).\n    Pass a project_id for one project, else all. Read-only — the CEO settles\n    the actual payout. This is what makes the clearinghouse fund restoration.",
      "inputSchema": {
        "properties": {
          "project_id": {
            "default": "",
            "title": "Project Id",
            "type": "string"
          }
        },
        "title": "project_fundingArguments",
        "type": "object"
      },
      "name": "project_funding"
    },
    {
      "description": "Register a VERIFIED restoration project so retirements against its\n    credits can be funded. verification_ref (D-Score / land-verification /\n    registry id) is required — only verified conservation is funded.\n    project_id is immutable once registered.",
      "inputSchema": {
        "properties": {
          "beneficiary": {
            "default": "",
            "title": "Beneficiary",
            "type": "string"
          },
          "location": {
            "default": "",
            "title": "Location",
            "type": "string"
          },
          "methodology": {
            "default": "",
            "title": "Methodology",
            "type": "string"
          },
          "name": {
            "default": "",
            "title": "Name",
            "type": "string"
          },
          "project_id": {
            "title": "Project Id",
            "type": "string"
          },
          "registry_ref": {
            "default": "",
            "title": "Registry Ref",
            "type": "string"
          },
          "verification_ref": {
            "title": "Verification Ref",
            "type": "string"
          }
        },
        "required": [
          "project_id",
          "verification_ref"
        ],
        "title": "register_projectArguments",
        "type": "object"
      },
      "name": "register_project"
    },
    {
      "description": "Read-only cash-settlement summary for a buyer: the list + exact sums\n    (purchases, mass_g, cost_minor) of their retirements, optionally since an\n    ISO-8601 timestamp — the statement a human settles in one transfer.",
      "inputSchema": {
        "properties": {
          "buyer": {
            "title": "Buyer",
            "type": "string"
          },
          "since": {
            "default": "",
            "title": "Since",
            "type": "string"
          }
        },
        "required": [
          "buyer"
        ],
        "title": "settlement_batchArguments",
        "type": "object"
      },
      "name": "settlement_batch"
    },
    {
      "description": "Verify an offset certificate: recompute its hash and check the ledger.",
      "inputSchema": {
        "properties": {
          "certificate": {
            "additionalProperties": true,
            "title": "Certificate",
            "type": "object"
          }
        },
        "required": [
          "certificate"
        ],
        "title": "verify_certificateArguments",
        "type": "object"
      },
      "name": "verify_certificate"
    },
    {
      "description": "Recompute the disbursement certificate hash chain and confirm whole-book\n    conservation of disbursed proceeds. Any party can audit disbursements.",
      "inputSchema": {
        "properties": {},
        "title": "verify_disbursementArguments",
        "type": "object"
      },
      "name": "verify_disbursement"
    },
    {
      "description": "x402-C C4 check: confirm a retirement (offset_ref = purchase_id)\n    actually retires at least required_g grams of verified conservation\n    credit — the check that lets a carbon receipt's neutrality claim be\n    honored. Returns covered / retired_g / shortfall_g and the backing\n    credits. Read-only.",
      "inputSchema": {
        "properties": {
          "purchase_id": {
            "title": "Purchase Id",
            "type": "string"
          },
          "required_g": {
            "default": 0,
            "title": "Required G",
            "type": "integer"
          }
        },
        "required": [
          "purchase_id"
        ],
        "title": "verify_retirementArguments",
        "type": "object"
      },
      "name": "verify_retirement"
    },
    {
      "description": "Generate the Verra-portal-ready retirement record(s) for a retirement\n    made against Verra supply — VCS project id, serial, vintage, methodology,\n    quantity (tCO2e), beneficiary, and the registry.verra.org cross-reference.\n    Read-only. Submit these under the Viridis Verra account to finalize the\n    on-registry retirement (portal today; auto-posts when Verra's transaction\n    API is live).",
      "inputSchema": {
        "properties": {
          "purchase_id": {
            "title": "Purchase Id",
            "type": "string"
          },
          "retirement_reason": {
            "default": "",
            "title": "Retirement Reason",
            "type": "string"
          }
        },
        "required": [
          "purchase_id"
        ],
        "title": "verra_retirement_recordArguments",
        "type": "object"
      },
      "name": "verra_retirement_record"
    },
    {
      "description": "The tradeable Verra VCS book: verified credits carrying genuine Verra\n    provenance (project id + serial + vintage), cross-referenceable on\n    registry.verra.org. Read-only. Every retirement nets the project 85% and\n    Viridis the 15% marketplace take.",
      "inputSchema": {
        "properties": {},
        "title": "verra_supplyArguments",
        "type": "object"
      },
      "name": "verra_supply"
    }
  ]
}

What the leaf hashes

{"body":"5cd2ddae918d690cd80547ddcd6b9a2490586912ff5855e09bdc8a3e67539be3","id":1245256,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793361986278361,"prev":223203,"subject":"6c90efbd-a925-4bd5-a8cf-6f79b54cac80","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x72c9742a8e377c2e537b581c1d8e6c6406f92be2157f64263001c2cfb1709582
2. 0xaa5f25fee7a6fc640b38343424cffe4f77c78ece8c7b2fd6c0fda54c745892e3
3. 0x70579448cc2ba5a0065ba62020813cf37f1962927da818413adc3eca5f1ea9ea
4. 0x7715fbe08031226de133b8adf5494ffd3673ce80c4ae986052102434a0a19ea8
5. 0x300009f280fc5100fbe3412e08cfb6938b17ab5352a07690ca2a30f63b5a88a3
6. 0x3ced62f05a6d65a8adee7ca6f2746c62dd5188ccf61c727bdee8d097d7c68d93
7. 0xd9effe0c5b2c579e7e138365e9bfb4105ac8bd793d7a2c0793b37302db27cec5
8. 0x3a008e197043e3a02ab2d5076b0bdfbb254be500b8d53360685b15c015b20d50
9. 0xa585c613fd69928621c03324de1fc68778f54fdfb614f8e2243c65721d0dcae9
10. 0xe6bef78a5dcfd6a137244a1487384805559885675444b2c4ad086e85a0393f9f
11. 0x7d8011266ede5c8ccfdafbe87d873299d40d5139f3a8e96f3156e361a49a3ea5
12. 0xcf17b226b0282e05075141acc94165d23ecbb094a9948dd8abc27872a0550966
13. 0xc49b39d1d5f1a9f4fc18bb83adeb6cd4a85dbf836296581eb9e9e717cc889fd7
14. 0x75bcbdd2a0d7acdea21f6011126339c8e33a476ec0a76842480cf5bf70db6a72
15. 0xdf25f5d38e3fb54d3e66e3bf876db529f619041e0d21f0bc35b80003418e3d9c
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861