← The evidence ledger
Evidence row 18323
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://ask.singitai.app/v1/chat/gpt-5.6-terra
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7f76105bc3e92c8be9a2825074350902f9cdc3ff2ce9a0d6f0e4059fc0366af7
- Leaf
- 0xa424f18d98ad2a2f73749381fa55c3c1075e57ec69c931bd35da29ae1fae1851
What was observed
{
"endpoints": [
[
"x402",
"https://ask.singitai.app/v1/chat/gpt-5.6-terra"
]
],
"name": "SingIt Ask",
"owner_address": "0xc23d1dc0f5fce1abffb051e06cb93f0329968b4e",
"raw": {
"accepts": [
{
"amount": "1500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"billing": {
"markupBps": 3000,
"maxChargeAtomic": "1500",
"mode": "exact_ceiling",
"settlementFeeAtomic": "1000",
"version": 1
},
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xC23d1Dc0f5fCe1abfFB051e06cB93f0329968B4e",
"scheme": "exact"
},
{
"amount": "2385",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"billing": {
"markupBps": 3000,
"maxChargeAtomic": "2385",
"mode": "actual_usage",
"settlementFeeAtomic": "2000",
"version": 1
},
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"paymentFlow": "escrow",
"receiverAuthorizer": "9dpHxn3XFZMZv59vE5MKxhfwGUCCgkcCUzYZLpdEm7ox",
"tokenProgram": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
"withdrawDelay": 300
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "4an2sqamWWhny9mjLsMtGXCDXakeNtg6vSLq4QvhdmQu",
"scheme": "upto"
},
{
"amount": "1500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "permit2",
"billing": {
"markupBps": 3000,
"maxChargeAtomic": "1500",
"mode": "actual_usage",
"settlementFeeAtomic": "1000",
"version": 1
},
"facilitatorAddress": "0x625d8a65134079f8faAAc39a7947c73d93C6aC39",
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xC23d1Dc0f5fCe1abfFB051e06cB93f0329968B4e",
"scheme": "upto"
},
{
"amount": "2247",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"billing": {
"markupBps": 3000,
"maxChargeAtomic": "2247",
"mode": "exact_ceiling",
"settlementFeeAtomic": "2000",
"version": 1
},
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "4an2sqamWWhny9mjLsMtGXCDXakeNtg6vSLq4QvhdmQu",
"scheme": "exact"
}
],
"description": "SingIt Ask: GPT-5.6 Terra (OpenAI) chat completions with no API key or account, OpenAI-compatible. Another GPT-5.6 variant from OpenAI: general-purpose chat, coding and reasoning. Call it when an agent needs GPT-5.6 Terra specifically.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"max_tokens": 400,
"messages": [
{
"content": "Where is good coffee near the Colosseum? (via GPT-5.6 Terra)",
"role": "user"
}
],
"model": "gpt-5.6-terra"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"billing": {
"currency": "USDC",
"markupAtomic": "2",
"markupBps": 3000,
"maxChargeAtomic": "3000",
"mode": "actual_usage",
"providerCostAtomic": "6",
"settlementFeeAtomic": "1000",
"totalAtomic": "1008",
"version": 1
},
"choices": [
{
"finish_reason": "stop",
"index": 0,
"message": {
"content": "Around the Colosseum, try Caffè Propaganda on Via Claudia or Bar Martini for an espresso with a view.",
"role": "assistant"
}
}
],
"created": 1791932400,
"id": "singit-ask-1791932400000",
"model": "singit-ask",
"object": "chat.completion",
"usage": {
"buyer_cost_micro": 6,
"completion_tokens": 31,
"prompt_tokens": 14,
"total_tokens": 45
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"max_tokens": {
"default": 800,
"description": "The longest answer, in tokens. The payment ceiling grows with it; the charge follows what was used.",
"maximum": 1200,
"minimum": 1,
"type": "integer"
},
"messages": {
"description": "The conversation, oldest first.",
"items": {
"properties": {
"content": {
"description": "Plain text; all messages together under 24000 characters.",
"type": "string"
},
"role": {
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
}
},
"required": [
"role",
"content"
],
"type": "object"
},
"maxItems": 40,
"minItems": 1,
"type": "array"
},
"model": {
"description": "Any model id from GET /v1/models; the ceiling follows its price. Omit for the default model.",
"examples": [
"deepseek-v4.1-flash",
"claude-opus-5.5",
"gpt-5.5",
"gemini-3.1-pro"
],
"type": "string"
},
"stream": {
"description": "Streaming is not offered.",
"enum": [
false
],
"type": "boolean"
}
},
"required": [
"messages"
]
},
"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"
},
"output": {
"properties": {
"example": {
"properties": {
"billing": {
"description": "What was charged, in USDC micro-units",
"properties": {
"currency": {
"const": "USDC",
"type": "string"
},
"markupAtomic": {
"type": "string"
},
"providerCostAtomic": {
"type": "string"
},
"totalAtomic": {
"description": "The amount settled",
"type": "string"
}
},
"type": "object"
},
"choices": {
"items": {
"properties": {
"finish_reason": {
"description": "stop, or length when max_tokens ended the answer",
"type": "string"
},
"index": {
"type": "integer"
},
"message": {
"properties": {
"content": {
"type": "string"
},
"role": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
"created": {
"description": "Unix seconds",
"type": "integer"
},
"id": {
"type": "string"
},
"model": {
"type": "string"
},
"object": {
"const": "chat.completion",
"type": "string"
},
"usage": {
"description": "Token counts and the model's own cost in micro-USD (buyer_cost_micro)",
"type": "object"
}
},
"required": [
"choices",
"billing"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"eip2612GasSponsoring": {
"info": {
"description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract.",
"version": "1"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"amount": {
"description": "The amount to approve (uint256). Typically MaxUint.",
"pattern": "^[0-9]+$",
"type": "string"
},
"asset": {
"description": "The address of the ERC-20 token contract.",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"deadline": {
"description": "The timestamp at which the signature expires.",
"pattern": "^[0-9]+$",
"type": "string"
},
"from": {
"description": "The address of the sender.",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"nonce": {
"description": "The current nonce of the sender.",
"pattern": "^[0-9]+$",
"type": "string"
},
"signature": {
"description": "The 65-byte concatenated signature (r, s, v) as a hex string.",
"pattern": "^0x[a-fA-F0-9]+$",
"type": "string"
},
"spender": {
"description": "The address of the spender (Canonical Permit2).",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"version": {
"description": "Schema version identifier.",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"type": "string"
}
},
"required": [
"from",
"asset",
"spender",
"amount",
"nonce",
"deadline",
"signature",
"version"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792921332/bazaar-icons/a240c598b3f928d1.png",
"lastUpdated": "2026-10-26T06:35:57.899Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-26T06:35:57.486Z"
},
"resource": "https://ask.singitai.app/v1/chat/gpt-5.6-terra",
"serviceName": "SingIt Ask",
"tags": [
"llm",
"chat",
"openai-compatible",
"inference",
"pay-per-use"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "SingIt Ask: GPT-5.6 Terra (OpenAI) chat completions with no API key or account, OpenAI-compatible. Another GPT-5.6 variant from OpenAI: general-purpose chat, coding and reasoning. Call it when an agent needs GPT-5.6 Terra specifically."
}What the leaf hashes
{"body":"7f76105bc3e92c8be9a2825074350902f9cdc3ff2ce9a0d6f0e4059fc0366af7","id":18323,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025328836645,"prev":null,"subject":"x402_bazaar:https://ask.singitai.app/v1/chat/gpt-5.6-terra","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).
- 0xa424e305841278a0bfdac95b7939631ca4580282b8a57827ca5f52e1b74e95c7
- 0x821159cb500fd9995f970c30ceb60b6314cdfffc6d142798cdfb48d93d7b238c
- 0xecfd53c638ec222e46c1e0633e2cde3659c4d9a9f2d14a986d3c86a372b6ca6a
- 0x78d632d86131851b42bc94803023879820e47a99a7ffc6eaebc23772f829efbc
- 0x38fc74e767e2776cb07f3f0eefd50ed6fee09e1758b998c0317bdcef3ccc8f72
- 0x51ac5c9c29f2a49d3b822d2d16bee5c7b5545a2c244ae27b5e494ca1e4a04c6e
- 0x014486d07aa83f0408cbd7c4427ac37d88600e077cbc074629712650bed249ae
- 0x596161fcb836cc14f9f7a805feea297801520079e5ec1b51bbabe3821bbd9aef
- 0xc7f2f5b3daead6ffc6655816ed90d85a4642b08e84aa867c9b2ca924dc7a356c
- 0x98005a23cbe74a9cdea08497a91d96ddecf46b8942b406963266e78529eea12d
- 0xf02ec0f13d875e636ca9d24097cc2a185cdb09429c8c4ade598b8089f42bb140
- 0x19537c574979327583a539261287714af2eee831125de819abab0f155acd3a75
- 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
- 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
- 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae