Evidence row 73056

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://darrylbots.com/api/agent-article-position-sizing"
    ]
  ],
  "name": "darrylbots.com/api/agent-article-position-sizing",
  "owner_address": "0x0bf63f37b0f512839c001548dc66a6a99bfc019b",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x0BF63F37b0f512839C001548dc66a6A99Bfc019B",
        "scheme": "exact"
      }
    ],
    "description": "Darrylbots paid early access: Drift, Spread, and the Martingale Illusion, Chapter 6",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "article": {
                "content_url": "https://darrylbots.com/bot-articles/drift-spread-polymarket/data/chapter-6.json",
                "payment": {
                  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                  "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
                  "pay_to": "0x0BF63F37b0f512839C001548dc66a6A99Bfc019B",
                  "protocol": "x402",
                  "scheme": "exact"
                },
                "preview_url": "https://darrylbots.com/bot-articles/drift-spread-polymarket/chapters/chapter-6.html",
                "price": {
                  "amount": "0.001",
                  "amount_atomic": "1000",
                  "currency": "USDC",
                  "network": "Base",
                  "network_caip2": "eip155:8453"
                },
                "series": "Drift, Spread, and the Martingale Illusion",
                "slug": "drift-spread-polymarket-chapter-6",
                "status": "paid_early_access",
                "title": "Position Sizing Without Superstition"
              },
              "chapter": {
                "agent_takeaways": [
                  "Entry price is the first sizing constraint in binary markets.",
                  "Kelly can inform a ceiling, but production bots need haircuts and hard caps.",
                  "Previous losses do not create edge; they only update state.",
                  "A zero-size decision is an active risk control, not inactivity.",
                  "Every paid-call payload should expose reason codes for stake, cap, and stop condition."
                ],
                "chapter": 6,
                "id": "drift-spread-polymarket-chapter-6",
                "series_title": "Drift, Spread, and the Martingale Illusion",
                "summary": "A paid chapter on converting prediction-market confidence into capped, auditable stakes without confusing aggression for edge.",
                "title": "Position Sizing Without Superstition"
              },
              "purchased": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-19T18:32:45.886Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T18:32:44.829Z"
    },
    "resource": "https://darrylbots.com/api/agent-article-position-sizing",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Darrylbots paid early access: Drift, Spread, and the Martingale Illusion, Chapter 6"
}

What the leaf hashes

{"body":"b35a8abff8ab8aa14ddcda18174f7033ead4881d70dcd2baffc7e45062bddff0","id":73056,"kind":"listing","method":"baseline/1","observed_us":1793025486990780,"prev":null,"subject":"x402_bazaar:https://darrylbots.com/api/agent-article-position-sizing","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. 0x3fe3901e35f4b7368834ded725251c0cdabfe15993e1b12b132cb808d586ec2b
2. 0x5daa4fc968cf3a44672675605f72e10e804dbe411595ad881d152ae3f917471a
3. 0x3eeeb761cb432f82bc0c4f471180190d0b72a8cf0e9db2cf43d42f84cc16c06d
4. 0x08e5169bfe3a87350a54147c34c1fa6deea8d5d078c34affacd54d911891c78d
5. 0xc07296c674c3f269f932a5a425de26d4abc9a75dcfb34790a0148bc3abda40f3
6. 0x976a5f59d7c635fcfc8e44bc0380903b9a3a59bd65a42fcfb1f2ae03e832e053
7. 0x29704660f81caa872d5121af55073d2bf593df4d11b45fe09b1fb8e765eb71f4
8. 0xd200df7bbb0a2a973aec75d472ef05143d694d1657b7240bc8e20ae3e3bc1093
9. 0x4838e66771fd133c28a61d579c1a2a5e287c010773f681dabd0604a2c37c1499
10. 0x4d366760261fa90306fab3a8c581c54f763c4071921cde42a107575598a3bf45
11. 0x6ec69a305a23b604ab679d75c3502d235953d73d9c2a74b16fb74b49af695fa0
12. 0xe2bb2a30c74e0bf16b8b75c332bdd45334d0338bef3f3022b7ea7b55718e1369
13. 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae