Evidence row 561719

What was observed

{
  "endpoints": [
    [
      "web",
      "https://preplayer.maximus-boomerus.workers.dev/landing"
    ],
    [
      "mcp",
      "https://preplayer.maximus-boomerus.workers.dev/mcp"
    ]
  ],
  "name": "PrepLayer.ai",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T21:11:51.654348Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T21:11:51.654348Z",
        "updatedAt": "2026-10-27T21:11:51.654348Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "x402": {
            "asset": "USDC",
            "discovery": "https://preplayer.maximus-boomerus.workers.dev/.well-known/x402",
            "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
            "manifest": "https://preplayer.maximus-boomerus.workers.dev/v1/manifest.json",
            "networks": [
              "eip155:8453",
              "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
              "eip155:137",
              "eip155:42161"
            ],
            "payTo": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
            "pricing": "per-call USDC, $0.002-$0.01 single, $0.04/call batch",
            "version": 1
          }
        }
      },
      "description": "Deterministic text prep for agents. Pay per call via x402 USDC.",
      "name": "com.maximusmediahouse/preplayer",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://preplayer.maximus-boomerus.workers.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/maximusboomerus-afk/preplayer-mcp"
      },
      "title": "PrepLayer.ai",
      "version": "0.2.0",
      "websiteUrl": "https://preplayer.maximus-boomerus.workers.dev/landing"
    }
  },
  "source": "mcp_registry",
  "summary": "Deterministic text prep for agents. Pay per call via x402 USDC."
}

What the leaf hashes

{"body":"c27e388f19b6b327b8b560ec1f2c108a76869ae5a08893bfa2da92b74a6729ea","id":561719,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793137261080664,"prev":null,"subject":"mcp_registry:com.maximusmediahouse/preplayer","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xdc802b2dc19eb3f6b3a4b855d4fcc277c6c565365554b8a6f0e402ef195e73b0
2. 0xa9fff3a41ef7738e8cfc3c993a9e804fe8e3e51df363f18b4fde8183fa1fc95f
3. 0x209756c0b37545467945b532e9b5ce09de2dcb64cf32802de9c0fcabf96bb35f
4. 0x769de4f1e2b289335ae6d6d611c5db92ccf267da1fff13571fccbadf0dd57102
5. 0xdf1829fa03191d81cb0ac9e616458118a19270b2a9e13a70635186615856d0bf
6. 0xef1d8845586cfdc399e84b9fafc42fd1773eba1256e93deb6dc3a1afa2f3ec88
7. 0x06b6752eeeaeb0044df46fc526a058581045020ba192cae4cde59ba639837ff7
8. 0x58d17cac05f00afb20883be247a5c6eb618a2baeea7d55eac3eee07eb1c41410
9. 0x319620496d8834d363b7bc5b23ca48f17ceb29a00063001834f17aa3132e40da
10. 0x8b9e7b1d7a2362202d1c5500d7dd57aeb3665661b2e8a574b3353585cafb75a1
11. 0x334fdc873c6948f434b9c525ce181116a68666c00b1dba45661a30143248eb2a
12. 0xb1729a74b02e0277214cd7ddc7a3826d50fd12538906bbf13236f7c6cca39323
13. 0x9f8e192630bb5fc72241bfdb0460be2fccc141b3afd0197fe2e478dc28ce82a9
14. 0xd59f3e577867f5105dd7f75598f16da8286185e426dfcdafb84e733fde2b2492
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4