← The evidence ledger
Evidence row 81148
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-niche-briefs.fly.dev/v1/amazon-vine-roi-estimator
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ed8b03ce3e23df2dbcfd29c8869d370b1a8b259586e0c8fe0345c790c0b40052
- Leaf
- 0x61fc889c275c0a1ed78155018e3817fa5150a75ee1079e2804eab1ccbafa34eb
What was observed
{
"endpoints": [
[
"x402",
"https://x402-niche-briefs.fly.dev/v1/amazon-vine-roi-estimator"
]
],
"name": "Amazon Vine ROI estimator",
"owner_address": "0x847f54ae8ddfd71ed7bc930c1f7a73576fab03a9",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
"scheme": "exact"
}
],
"description": "Estimate Vine enrollment cost and break-even incremental units.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"unit_cogs_usd": "8",
"unit_margin_usd": "9",
"units_enrolled": "30"
},
"type": "http"
},
"output": {
"example": {
"as_of": "2026-10-25",
"breakeven_incremental_units": 49,
"enrollment_fee_usd": 200,
"input": {
"unit_cogs_usd": 8,
"unit_margin_usd": 9,
"units_enrolled": 30
},
"total_cost_usd": 440
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"unit_cogs_usd": {
"description": "Unit landed cost",
"type": "string"
},
"unit_margin_usd": {
"description": "Unit contribution margin",
"type": "string"
},
"units_enrolled": {
"description": "Units enrolled",
"type": "string"
}
},
"required": [
"units_enrolled",
"unit_cogs_usd",
"unit_margin_usd"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"as_of": {
"type": "string"
},
"breakeven_incremental_units": {
"type": "number"
},
"enrollment_fee_usd": {
"type": "number"
},
"input": {
"properties": {
"unit_cogs_usd": {
"type": "number"
},
"unit_margin_usd": {
"type": "number"
},
"units_enrolled": {
"type": "number"
}
},
"required": [
"units_enrolled",
"unit_cogs_usd",
"unit_margin_usd"
],
"type": "object"
},
"total_cost_usd": {
"type": "number"
}
},
"required": [
"input",
"enrollment_fee_usd",
"total_cost_usd",
"breakeven_incremental_units",
"as_of"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T11:01:51.93Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T11:01:51.76Z"
},
"resource": "https://x402-niche-briefs.fly.dev/v1/amazon-vine-roi-estimator",
"serviceName": "Amazon Vine ROI estimator",
"tags": [
"marketplace",
"amazon",
"reviews"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Estimate Vine enrollment cost and break-even incremental units."
}What the leaf hashes
{"body":"ed8b03ce3e23df2dbcfd29c8869d370b1a8b259586e0c8fe0345c790c0b40052","id":81148,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025499898599,"prev":null,"subject":"x402_bazaar:https://x402-niche-briefs.fly.dev/v1/amazon-vine-roi-estimator","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).
- 0x61fc8788d7cc17f27ef7600b7565947985b0c26e77f8336e250de57bd05dc9b7
- 0xae59f611708b89fdcb78f65d030f75331e5ae04d042497e28c84ed8e1bcbb49e
- 0x486f30ee448ceb94724ba51b388e34cd0216128a8773d8a2df0975c9a2060d67
- 0xd95685a916388ade9eb8b5cf8fe0d36b896cd2bbbb7c4e4b868f4568714c3186
- 0x03dafb7ffd8c256fa1593f524152792337ba37a04529632b5e26d5da27d783e6
- 0x0ba07a364a61f93b7b49d3f1a81a0e062314224d28dab4cf93e074b7aa206317
- 0x5ed9d946c2ed99b4c9dc57f347ce6a5414ed69890a0c6a6beb2c10199d1a852a
- 0x6d529c760019b19428064ed135d30d8cf37912eb961bfd7b832f0abb555552b7
- 0x13441f153372e013c04778a34a9ff337f9833e82144ed3f866eff5095bda7643
- 0x4bd779681baa37c7b5e97fc4428314d20a148dc23dbb29b5e37888d340cbe8ec
- 0x3d00f56ff37fbd465b8abeb2be25801b2734d79745152d15324c296fa2518752
- 0x7285c0b02d1aedd949b8ba0c7b2499f7121588ebdd4c96ef8725919bb84dd534
- 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
- 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
- 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae