addrbookFor publishers
← The evidence ledger

Evidence row 119072

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://readability.openverbs.com/v1/reading-time
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
efc70757d46177d60833df361cdec3033a544b583ecb595bedde61cc1c19cc36
Leaf
0x3b0fce3d0367357dc2113b228d336605b94a1b3faff97b225db432005896741f

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://readability.openverbs.com/v1/reading-time"
    ]
  ],
  "name": "Reading & speaking time",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Estimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "readingWpm": 1,
              "speakingWpm": 1,
              "text": "example"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "readingWpm": {
                      "description": "Reading rate in words per minute. Default 200.",
                      "exclusiveMinimum": 0,
                      "type": "number"
                    },
                    "speakingWpm": {
                      "description": "Speaking rate in words per minute. Default 130.",
                      "exclusiveMinimum": 0,
                      "type": "number"
                    },
                    "text": {
                      "description": "Text to estimate time for.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:39:21.542Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:39:21.275Z"
    },
    "resource": "https://readability.openverbs.com/v1/reading-time",
    "serviceName": "Reading & speaking time",
    "tags": [
      "reading time estimate",
      "speaking time estimate",
      "words per minute calculator",
      "estimate read time",
      "text duration api"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Estimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking)."
}

What the leaf hashes

{"body":"efc70757d46177d60833df361cdec3033a544b583ecb595bedde61cc1c19cc36","id":119072,"kind":"listing","method":"baseline/1","observed_us":1793025614432982,"prev":null,"subject":"x402_bazaar:https://readability.openverbs.com/v1/reading-time","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x3b100a750cb5948a3a2ae8d2baa174d738997b1a607b4b44918ae7d8caa9a2ff
  2. 0x64232420f1e8923ea2b1b33051ba841a7b59f21a38898d92c6ded98c9ad80865
  3. 0xbe09e8ba74d8939a86d538cb037aa190e75c11c2823307e70e8e7090ea1d74d4
  4. 0xf89394f8a22507700abc718346c948de9862ee735a534daec43730a29bcdcbf2
  5. 0xecf08974a935b88fc779a390497b0e66c9086d31d3f935fc8dae30ab3b7949a9
  6. 0x0c707651a0790e21a62002e925fbd0016bb04cfabe7f153434a914aa53036e26
  7. 0x925e4adb27ab14371cb75017f756960ac80df877cc01c3207027c254e8d84caf
  8. 0x94f3f9eea4247c10773023f8c9494467060f41c01fba7326e6c895d0a25b6f96
  9. 0x18b5713377bea4f923f56bca7d2a93006479c12b53ba7d1abc287c9b630232df
  10. 0x0c9588d83dbdbfe86d2f03c80aaae11aaa963d8c04ce31ca8923453d940310f4
  11. 0x229584c1d304842544db84ca7b368b5ececeb9d3bea2b23265eba1c7595d1220
  12. 0xdb4b9388e3fe1df4b04e149e559f925fb354066ae1d2537fd6f918162716fadf
  13. 0xe2214b3d6a48396930d1739b02ea366de2aac5337c9b9ff2aff28cecf6518139
  14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
  15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON