Evidence row 566925

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Free: how many new items arrived since a cursor (next_since) for given topics/tickers, so an agent only pays for /v1/news when there is something new.",
      "inputSchema": {
        "properties": {
          "since": {
            "type": "string"
          },
          "tickers": {
            "type": "string"
          },
          "topics": {
            "type": "string"
          }
        },
        "required": [
          "since"
        ],
        "type": "object"
      },
      "name": "count_new_crypto_news"
    },
    {
      "description": "Free: latest 5 crypto headlines (title, source, url, published_at, topics), optional topics filter. Full feed with summaries, tickers, since cursor: GET /v1/news via x402 ($0.0008 USDC on Base).",
      "inputSchema": {
        "properties": {
          "topics": {
            "description": "comma list, e.g. bitcoin,security",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "latest_crypto_headlines"
    }
  ]
}

What the leaf hashes

{"body":"6e7ee786f59cfe78ee3ab9a9bea2688d68534fc6a17a39ca6a13c096072823d4","id":566925,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138568763174,"prev":null,"subject":"fb032227-9c72-46d3-a48e-3e4e431fc689","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. 0x2f4d0d14d0e1205a2549c880b24a0db5d786e8899ca815521c14588a6b1a647a
2. 0xcc94c682673dfc52713adc5ff36429189518e6d24b9fa51f2c7e83c38cb3d5de
3. 0x4059f4cfe69e0e1f3b464db7a16650c334029c15ee5baa9f743a2ab3ec496468
4. 0x9b1d23ab1418709bbddb901e88e5fb68658bf371e6274161057870e4cb56fd9f
5. 0x3bd4d23cb11a3ed585ff2c48227a5ae6dfd1e72ec47eb4598fb974855bd4cdd0
6. 0xf6a3891bba0c87a93f1bb111e7d2cb72161d137bfd224b66137fb2f9006c2dd7
7. 0x9ae776a65a3db3069ed779651e49b29c28babb4b8bd9d3ea1e4efcfd520cedeb
8. 0x8924aafcd706556d88ef54e493d23675a27cfce9a21a9686cad1c9c8ec1638ea
9. 0xc93af8c23419c12f056d022b6aed53f74b8c1e3804fc7797fe69a83df6a341bd
10. 0xcb2ca9ab824056f7e354a29fb0c627eccacecbba9628e903cc3960727611d8bb
11. 0xebaa56a29a2dfdf39f8c55fe4433bd513a26a783d93a8d85e51192ee9bb2860f
12. 0x2d9c2517fb6dcdc0ce42dd3a93f7e33064509cbed0a9132fb1209ec8f33ef0ab
13. 0x2a25cd9926d8f2ef4726fd2a80f77b1ca202b6c3ca56aeb2f520555c93efd434
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4