← The evidence ledger
Evidence row 74316
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://draconic21-x402-api.onrender.com/v1/token_price
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c5be16314c6f4038c8d4d3e2e4f6a296bb8c62f05fb531e90f9cdfa88ddd76a5
- Leaf
- 0x9053f7f16d896c3c04fed2cea5b9fbbf187caf50130aa1ceea1205f91ac49f60
What was observed
{
"endpoints": [
[
"x402",
"https://draconic21-x402-api.onrender.com/v1/token_price"
]
],
"name": "d21 token_price",
"owner_address": "0x1520ef5530aa71350049be2903cf078b38c40ae5",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x1520Ef5530AA71350049BE2903Cf078B38c40AE5",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6mc4GhWFyNcMh7gAVDWrKeYjDqFtEKWKQuZ9RTw2VkfM",
"scheme": "exact"
}
],
"description": "Token Price ($0.003): Base token price derived from on-chain state, not a resold price-API feed. Curated majors (ETH, WETH, USDC, DAI, cbETH, cbBTC, BTC) are priced from Chainlink's own Data Feed aggregator contracts on Base; any other Base ERC-20 address is priced from its deepest discoverable Uniswap V3 pool against USDC (with a liquidity read and a low-liquidity flag), or a clean unsupported-token error if no pool is discoverable. Also accepts { coins }, a comma-separated batch of symbols…",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"symbol": "WETH"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"caveats": [
"Chainlink price feeds update on their own deviation-threshold/heartbeat schedule, not ever…"
],
"price": {
"quote": "USD",
"value": "2683.92507148",
"value_number": 2683.92507148
},
"source": {
"chainlink": {
"feed_address": "0x71041dddad3595F9CEd3DcCFBe3D1F4b0a16Bb70",
"pair": "ETH / USD"
},
"method": "chainlink"
},
"token": {
"address": "0x4200000000000000000000000000000000000006",
"decimals": 18,
"symbol": "WETH"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"address": {
"description": "Any Base ERC-20 contract address (0x...), priced from its deepest live Uniswap V3 USDC pool. Mutually exclusive with symbol/coins.",
"type": "string"
},
"coins": {
"description": "Comma-separated batch of symbols and/or 0x addresses, up to 10 (e.g. 'BTC,ETH,0x...') — same param name the category-leading incumbent uses. Mutually exclusive with symbol/address.",
"type": "string"
},
"quote": {
"description": "Quote currency, default USD.",
"enum": [
"USD",
"ETH"
],
"type": "string"
},
"symbol": {
"description": "Curated major token symbol: ETH, WETH, USDC, DAI, CBETH, CBBTC, or BTC. Mutually exclusive with address/coins.",
"type": "string"
}
},
"required": [],
"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"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"format": "date-time",
"type": "string"
},
"block": {
"properties": {
"number": {
"type": "integer"
},
"timestamp_iso": {
"type": "string"
}
},
"type": "object"
},
"caveats": {
"items": {
"type": "string"
},
"type": "array"
},
"confidence": {
"properties": {
"level": {
"enum": [
"high",
"medium",
"low"
],
"type": "string"
},
"note": {
"type": "string"
}
},
"type": "object"
},
"count": {
"type": "integer"
},
"historical": {
"enum": [
false
],
"type": "boolean"
},
"liquidity": {
"properties": {
"estimated_total_value_usd": {
"type": "number"
},
"tier": {
"enum": [
"high",
"medium",
"low"
],
"type": "string"
},
"token_reserve": {
"type": "number"
},
"usdc_reserve": {
"type": "number"
}
},
"type": [
"object",
"null"
]
},
"mode": {
"enum": [
"batch"
],
"type": "string"
},
"price": {
"properties": {
"quote": {
"enum": [
"USD",
"ETH"
],
"type": "string"
},
"value": {
"type": "string"
},
"value_number": {
"type": "number"
}
},
"type": "object"
},
"prices": {
"items": {
"properties": {
"confidence": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"decimals": {
"type": "integer"
},
"key": {
"type": "string"
},
"method": {
"enum": [
"chainlink",
"dex_pool"
],
"type": "string"
},
"price": {
"type": "number"
},
"query": {
"type": "string"
},
"resolved": {
"enum": [
true
],
"type": "boolean"
},
"symbol": {
"type": [
"string",
"null"
]
},
"timestamp": {
"type": "integer"
}
},
"type": "object"
},
"type": "array"
},
"requested": {
"type": "integer"
},
"source": {
"properties": {
"chainlink": {
"properties": {
"feed_address": {
"type": "string"
},
"pair": {
"type": "string"
}
},
"type": "object"
},
"dex": {
"properties": {
"fee_tier_bps": {
"type": "number"
},
"name": {
"type": "string"
},
"pool_address": {
"type": "string"
},
"quote_token": {
"type": "string"
}
},
"type": "object"
},
"method": {
"enum": [
"chainlink",
"dex_pool",
"on-chain"
],
"type": "string"
}
},
"type": "object"
},
"staleness": {
"properties": {
"seconds": {
"type": "integer"
}
},
"type": "object"
},
"token": {
"properties": {
"address": {
"type": [
"string",
"null"
]
},
"decimals": {
"type": "integer"
},
"symbol": {
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"unresolved": {
"items": {
"properties": {
"query": {
"type": "string"
},
"reason": {
"type": "string"
},
"resolved": {
"enum": [
false
],
"type": "boolean"
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"source",
"caveats"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-15T07:30:50.752Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-15T07:30:50.396Z"
},
"resource": "https://draconic21-x402-api.onrender.com/v1/token_price",
"serviceName": "d21 token_price",
"tags": [
"token-price",
"crypto-price",
"onchain-price",
"base-chain",
"chainlink"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Token Price ($0.003): Base token price derived from on-chain state, not a resold price-API feed. Curated majors (ETH, WETH, USDC, DAI, cbETH, cbBTC, BTC) are priced from Chainlink's own Data Feed aggregator contracts on Base; any other Base ERC-20 address is priced from its deepest discoverable Uniswap V3 pool against USDC (with a liquidity read and a low-liquidity flag), or a clean unsupported-token error if no pool is discoverable. Also accepts { coins }, a comma-separated batch of symbols…"
}What the leaf hashes
{"body":"c5be16314c6f4038c8d4d3e2e4f6a296bb8c62f05fb531e90f9cdfa88ddd76a5","id":74316,"kind":"listing","method":"baseline/1","observed_us":1793025488770256,"prev":null,"subject":"x402_bazaar:https://draconic21-x402-api.onrender.com/v1/token_price","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).
- 0x905444422887e21aa385c0c399e82c2159842e6374d661c18ddc672409ef01c8
- 0xaa7715f3b3228639eb4fb7172784d208931664c88aa6d18e39438eef13ffd2ae
- 0x8b5c335aab11b2434bdf0d474bde257eeb6dd16682f3ba0205889010daff723b
- 0x5f013b752521a466a52dc5ecffaecad680baec422b02ee816dc40a6b31cf4751
- 0x49fd8acdb4904e6a5640bfd4956165859eb11af2b474576e0ed925e574a576e8
- 0x65ea577d4bb6ef5299af287aad3dd467f0bb6b510968103e605d864d342a535a
- 0xf3efcdb7581bae56aeeb79c35f4ec227fd14a2245d5628616b3c0ae049ec6e2a
- 0x6c2bfe83c5e7c907390bddb47ba3276eee0c56a6a495bce5e3819e0b16bac733
- 0xd766dc6d30e45dd4721d8e5517317aba7e40a8779cb1b040f381e4a1df741090
- 0x937ec000b046e1bf91c802a5eed5cbe7852354ed43b3084c7d16a93933523a5e
- 0xc41c5ee73cf254bf3fe8e9a8475b0931c3223f7331f30010bc3a5e2a753329d6
- 0x4634efb8094d1dd2874013b832ad8653e49400f57bf98efdcc5f925ed08d0f5b
- 0xc0cb184c9bdf71abcf18fda97bd59289153d120dbf8fee9f517b63bf303deb95
- 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
- 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae