← The evidence ledger
Evidence row 751939
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/backpack/pack-weight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 36eaba30d86e53433a4c125683364049877ea12a6faa762c0f9a6119ab683bf9
- Leaf
- 0x1d5717ec381d2e26824c28d660cf1be3eadeeaf18034db6b4d809d421c8f7c09
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/backpack/pack-weight"
]
],
"name": "Saylor Innovations Backpack Wei",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:backpack:pack-weight",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:backpack:pack-weight",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:backpack:pack-weight",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:backpack:pack-weight",
"reference": "8u9kAzxQUKbUwqv8mPUcgtJr9yBbHqVe5y1giKVry8kg",
"session": "eyJhcnRpY2xlSWQiOiJiYWNrcGFjazpwYWNrLXdlaWdodCIsInJlZmVyZW5jZSI6Ijh1OWtBenhRVUtiVXdxdjhtUFVjZ3RKcjl5QmJIcVZlNXkxZ2lLVnJ5OGtnIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTMxNjMzOTEzNTl9.FoSzYXm95Q8Y0VLwVezxpPEQTQKDRWErCIdxrSSz64o"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:backpack:pack-weight",
"reference": "DQCWMjjvfF4mcHiJpJticPJtteZbF99V6WyNpj9brmCA",
"session": "eyJhcnRpY2xlSWQiOiJiYWNrcGFjazpwYWNrLXdlaWdodCIsInJlZmVyZW5jZSI6IkRRQ1dNamp2ZkY0bWNIaUpwSnRpY1BKdHRlWmJGOTlWNld5TnBqOWJybUNBIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTMxNjMzOTEzNTl9.t7PshSL_y7K2mQWsXJJJjw9VXOB5Eh2zyMKLjukTq-s"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "95125",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:backpack:pack-weight",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "98068",
"reference": "HFVErEZmZrKw8eGRqoDCMJjfvpDzAk31K44TSesonCpS",
"session": "eyJhcnRpY2xlSWQiOiJiYWNrcGFjazpwYWNrLXdlaWdodCIsInJlZmVyZW5jZSI6IkhGVkVyRVptWnJLdzhlR1Jxb0RDTUpqZnZwRHpBazMxSzQ0VFNlc29uQ3BTIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjk1MTI1LCJleHAiOjE3OTMxNjMzOTEzNTl9.hZ3V5Dm-ZajrVotwAZ8qNR6yRynnl4W6sX_heXZ9Zj4",
"solUsdPrice": 101.97
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Base weight, total pack weight, percent of body weight and heaviest items for backpacking gear",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"body_kg": "76",
"food_kg": "3.6",
"fuel_g": "180",
"items": "Backpack:880:pack|Tent:1050:shelter|Quilt:620:sleep|Pad:410:sleep|Stove and pot:360:kitchen|Rain jacket:280:clothing|Insulation jacket:340:clothing|First aid:220:safety|Headlamp and phone:310:electronics|Filter:90:water",
"water_litres": "1.5",
"worn_g": "1600"
},
"type": "http"
},
"output": {
"example": {
"base_weight_kg": 4.56
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"body_kg": {
"description": "optional body weight in kg, default 75 (query)",
"type": "string"
},
"food_kg": {
"description": "optional food weight in kg, default 0 (query)",
"type": "string"
},
"fuel_g": {
"description": "optional fuel in grams, default 0 (query)",
"type": "string"
},
"items": {
"description": "required gear as name:grams:category separated by | where category is shelter, sleep, pack, clothing, kitchen, water, electronics, safety, other, for example Tent:1200:shelter|Quilt:600:sleep (max 60) (query)",
"type": "string"
},
"water_litres": {
"description": "optional water carried in litres, default 1 (query)",
"type": "string"
},
"worn_g": {
"description": "optional weight of worn clothing and carried poles/shoes in grams, default 1500 (query)",
"type": "string"
}
},
"required": [
"items"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-28T04:54:31.392Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-28T04:54:31.244Z"
},
"resource": "https://saylorinnovations.com/api/backpack/pack-weight",
"serviceName": "Saylor Innovations Backpack Wei",
"tags": [
"dividends",
"fees",
"asset-allocation",
"retirement",
"hiking"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Base weight, total pack weight, percent of body weight and heaviest items for backpacking gear"
}What the leaf hashes
{"body":"36eaba30d86e53433a4c125683364049877ea12a6faa762c0f9a6119ab683bf9","id":751939,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178793481931,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/backpack/pack-weight","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).
- 0x1d571cb30e168d24f64b1dd0c19cf3a5edefdee8763dd55cd071f97e9535cfbf
- 0xd6ddde208796e7e7da002c8605a00fa27643f88a4699bd000b923367de3103ac
- 0xfc0b7be7f0567f603b16861f49f41a28df184a40b81608f1cb3e8c1b05b53018
- 0xf00d792dbe480c9b2f98947ca9ae547675e9315ccfa3f3955d2a379451a8766b
- 0x2de1734f7b84c8a0e148858aa8805941e08edbb3be4b1b6a67dcba506cf77fe2
- 0xc1192264a205b52449ec0bc6029949f975ef70ce52e9bed191e8677e136998ca
- 0x64cd08612ad237841539b8b52480c9faeddc836a0516fe3000fb3bb4719528c3
- 0x08f9063f483d9d6f2257bfe566036b90c8c9057414942f26d55980fede3f0474
- 0xf2a5e1f9b21ab1ebcf50cec0f06d52b9fbe1fc8a93b4ea6e419b50a5899efeff
- 0xbbaea2b148c2fcc636f857539a2f2e59a409d06724f2c0db694ce325df12a82d
- 0x8f3f9d8cdb81fb943d0fceae9dcb58969b878c13d277bf382820344093a336f8
- 0xf284ecd6248b53812022b70ab837579ec0755e2a6a171de0958eef2070ac0d7f
- 0xaeeae4466766a65cd22fc29006507aa614269d1921fdace8a2ed483f4b0aa51f
- 0xa45c19ee1ddfa3971a75affe2da0c01e0a09406bb4b50c48e0d9cf0e082801a3
- 0x4698ebc7cbcb2286f661b867355eb6a9183e884482ee16965889e886b17d19ac
- 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
- 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
- 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae