← The evidence ledger
Evidence row 68401
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/maker/print-cost-3d
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 4e59685df9ec01f088d3cbcfdb2c3d2ea22ecb61f595f7a9499f53bee1a3e331
- Leaf
- 0xec4764c995812acdd97c1778cc9cd193e3bb195ea95554ac34666e93f6cbd5b7
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/maker/print-cost-3d"
]
],
"name": "Saylor Innovations 3D Print Cos",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:maker:print-cost-3d",
"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:maker:print-cost-3d",
"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:maker:print-cost-3d",
"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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:maker:print-cost-3d",
"reference": "5kAPnCcnCRydM5LZ3DT5cZ4dA8i5bj49AuR4iATNdnc6",
"session": "eyJhcnRpY2xlSWQiOiJtYWtlcjpwcmludC1jb3N0LTNkIiwicmVmZXJlbmNlIjoiNWtBUG5DY25DUnlkTTVMWjNEVDVjWjRkQThpNWJqNDlBdVI0aUFUTmRuYzYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5Mjk5NjkxODQxNH0.Sgn1mdauegHCd8em0q25vOPf0BiUtvNBluhnc0KYqUA"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:maker:print-cost-3d",
"reference": "ALuQDgrwrwc3bsABzwUTN3V2WgSBd418ui2dtMWkfqfq",
"session": "eyJhcnRpY2xlSWQiOiJtYWtlcjpwcmludC1jb3N0LTNkIiwicmVmZXJlbmNlIjoiQUx1UURncndyd2MzYnNBQnp3VVROM1YyV2dTQmQ0MTh1aTJkdE1Xa2ZxZnEiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5Mjk5NjkxODQxNH0.uBQ0oHF-O1X7ToxGoyaiPK3IyDCAE8fgQmNuaeBqMzk"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "96334",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:maker:print-cost-3d",
"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": "99314",
"reference": "DYWPkb8Pp4ouPpqQfS2X4WXZPruJrQS76DrxxSZfhxLN",
"session": "eyJhcnRpY2xlSWQiOiJtYWtlcjpwcmludC1jb3N0LTNkIiwicmVmZXJlbmNlIjoiRFlXUGtiOFBwNG91UHBxUWZTMlg0V1haUHJ1SnJRUzc2RHJ4eFNaZmh4TE4iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTYzMzQsImV4cCI6MTc5Mjk5NjkxODQxNH0.u6uJlvepk0PBG20qTd8l2Q2xI60ZYYmaw6v7QZVo6Dk",
"solUsdPrice": 100.69
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Filament, electricity, depreciation, failure and labor cost with selling price and batch totals",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"filament": "petg",
"labor_minutes": "15",
"markup_percent": "100",
"print_hours": "6.5",
"printer_watts": "130",
"quantity": "10",
"weight_g": "85"
},
"type": "http"
},
"output": {
"example": {
"cost_per_part": 4.9,
"selling_price_per_part": 9.8
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"filament": {
"description": "optional pla (default), petg, abs, asa, tpu, nylon or pc (query)",
"type": "string"
},
"labor_minutes": {
"description": "optional handling and finishing minutes (query)",
"type": "string"
},
"markup_percent": {
"description": "optional markup on cost, default 100 (query)",
"type": "string"
},
"print_hours": {
"description": "required print time in hours (query)",
"type": "string"
},
"printer_watts": {
"description": "optional average draw, default 120 (query)",
"type": "string"
},
"quantity": {
"description": "optional batch size, default 1 (query)",
"type": "string"
},
"weight_g": {
"description": "optional part weight from your slicer in grams (or give volume_cm3) (query)",
"type": "string"
}
},
"required": [
"print_hours"
],
"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"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792548358/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-26T06:39:58.457Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T06:39:58.288Z"
},
"resource": "https://saylorinnovations.com/api/maker/print-cost-3d",
"serviceName": "Saylor Innovations 3D Print Cos",
"tags": [
"electronics",
"calculator",
"maker",
"engineering",
"design"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Filament, electricity, depreciation, failure and labor cost with selling price and batch totals"
}What the leaf hashes
{"body":"4e59685df9ec01f088d3cbcfdb2c3d2ea22ecb61f595f7a9499f53bee1a3e331","id":68401,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025466640124,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/maker/print-cost-3d","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).
- 0xec48527b65ba4fd5464e313b7fdbb31f680ca6d1028ce7e26404fe535ac01001
- 0xdb8c034fa4369a97687ad02a3501d28667f480bb6b64513aadc1e2ccb0edd72d
- 0x345fc5aef40e2c51bd71d32eeebad0768215fc299df3e70032b6427a4e05be72
- 0x881604393f371fa450b886aded8c7ab6edc3d2e8c6f86b56de215be4bb0ce192
- 0x8e731503edc60c7e8cde502eb79bb22b18f0457ea2de35cf0a12f8e64b163669
- 0xde6b2d0de4048eda9e866c173663537d13dfcf329b4ed3ea5d129dd6a59d38c6
- 0x4155471f85f51fa5a4532ce14f05ed743c83ff35b215e29fc8b8bc325db7ed21
- 0x73eb5c35c89db5978a77a712d0fb4ed1a9a8eae3dcbe7b78f69e57c2776a379d
- 0xd431109875ad6ba14d3d4bcdb9ca53069b9e23c9de8b8ccdad9978b1a66d4b2f
- 0x0e6847189b6b941d0233f67c69f0c32e1b6794611c654d5a10f2587ccfc1b873
- 0x94e3a06f6e015a8e8a8a7e2c73991edf3f9ceb9ff83b85412d31c39f3e9bc8c1
- 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
- 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
- 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae