← The evidence ledger
Evidence row 120812
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/validate/unichain
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 53c653fd2dee32e0a191ba7b9c0391028ee1d7c7066e1f7dac549ba131669c55
- Leaf
- 0x9b09954b3dcec288ae6e94cb86385519bb1399e4931531420511026f7a043b95
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/validate/unichain"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:validate-unichai",
"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:datadesk:validate-unichai",
"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:datadesk:validate-unichai",
"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:datadesk:validate-unichai",
"reference": "C1sNzGdHiGLv5eguy8BDdi9JNYD52i64toK26j8ZQ72W",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0ZS11bmljaGFpbiIsInJlZmVyZW5jZSI6IkMxc056R2RIaUdMdjVlZ3V5OEJEZGk5Sk5ZRDUyaTY0dG9LMjZqOFpRNzJXIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NDE3MTA4MTF9.RTZbZ_xLUFtk-u34iB8Z_T1A3Xe0dPM1GIsEgoqH_q0"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:validate-unichai",
"reference": "9zANupspHrwm6r7ZgMX4mDtc3aeur4JMCpHcczx5JXLQ",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0ZS11bmljaGFpbiIsInJlZmVyZW5jZSI6Ijl6QU51cHNwSHJ3bTZyN1pnTVg0bUR0YzNhZXVyNEpNQ3BIY2N6eDVKWExRIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NDE3MTA4MTF9.l-kKHUZt81xleBbxSC_X3Mrv9XsnZCiTDj4GRMmAD3s"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91147",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:validate-unichai",
"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": "93967",
"reference": "DSrFd6At6f6XNKNuNvamByjp9LafWho1jSmgXmzh6asG",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0ZS11bmljaGFpbiIsInJlZmVyZW5jZSI6IkRTckZkNkF0NmY2WE5LTnVOdmFtQnlqcDlMYWZXaG8xalNtZ1htemg2YXNHIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxMTQ3LCJleHAiOjE3OTI1NDE3MTA4MTJ9.fohQl6sApDnIZnG2vwH8eygIOUAfChK3ZNJy1x6FU6Y",
"solUsdPrice": 106.42
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Validate a Unichain address before sending: checksum, wrong-network check, live account type and balance, OFAC screening, and a send verdict of ok, caution or do_not_send.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"type": "http"
},
"output": {
"example": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"address_type": "EVM account or contract address (20 bytes)",
"chain": "unichain",
"chain_name": "Unichain",
"checksum": "valid",
"detected_network": null,
"format_valid": true,
"network_match": true,
"normalized": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"note": "Verdict is advice for an agent before moving funds: ok = nothing found, caution = check first, do_not_send = a serious problem, invalid = not a usable Unichain address. The on-chain check reads a public node at the latest block. Sanctions screening covers OFAC-listed digital-currency addresses only. A valid, clean address can still belong to the wrong person: confirm it through a second channel and send a small test amount first for large transfers.",
"on_chain": {
"balance": 0.00034410213982519,
"balance_symbol": "ETH",
"checked": true,
"eip7702_delegate": null,
"exists": true,
"kind": "externally_owned_account",
"transactions_sent": 0
},
"sanctions": {
"checked": true,
"entity": null,
"list": "OFAC SDN digital-currency addresses",
"sanctioned": false
},
"source": "Computed locally (checksum and format); Unichain public node; OFAC SDN digital-currency address list",
"summary": "Valid EVM account or contract address (20 bytes).",
"verdict": "ok",
"warnings": []
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "the Unichain address to validate before sending funds",
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"description": "Account or contract address",
"type": "string"
},
"address_type": {
"description": "Address type",
"type": [
"string",
"null"
]
},
"chain": {
"description": "Blockchain the data is for",
"type": "string"
},
"chain_name": {
"description": "Chain name",
"type": "string"
},
"checksum": {
"type": "string"
},
"detected_network": {
"description": "Detected network",
"type": [
"string",
"null"
]
},
"format_valid": {
"description": "Format valid",
"type": "boolean"
},
"network_match": {
"description": "Network match",
"type": "boolean"
},
"normalized": {
"type": [
"string",
"null"
]
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"on_chain": {
"description": "On chain",
"type": "object"
},
"sanctions": {
"type": "object"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"summary": {
"description": "Short summary",
"type": "string"
},
"verdict": {
"description": "Overall assessment derived from the listed reasons",
"type": "string"
},
"warnings": {
"type": "array"
}
},
"required": [
"chain",
"chain_name",
"address",
"format_valid",
"checksum",
"network_match",
"on_chain",
"sanctions",
"warnings",
"verdict",
"summary",
"note",
"source"
],
"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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-21T00:13:10.86Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-21T00:13:10.672Z"
},
"resource": "https://saylorinnovations.com/api/validate/unichain",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"unichain address validator",
"validate unichain wallet",
"address checksum check",
"ofac address screening",
"safe to send check"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Validate a Unichain address before sending: checksum, wrong-network check, live account type and balance, OFAC screening, and a send verdict of ok, caution or do_not_send."
}What the leaf hashes
{"body":"53c653fd2dee32e0a191ba7b9c0391028ee1d7c7066e1f7dac549ba131669c55","id":120812,"kind":"listing","method":"baseline/1","observed_us":1793025618836403,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/validate/unichain","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).
- 0x9b098a574d71ca529ee1fdbc0f249f763d847165c4bf7872175b6e2e7dd82ffb
- 0x498da8aeca001c35b8410ea774e82136ce9d8537fd877abc8abdcfb8081b3226
- 0x4676c4d9c03d29c1ca69bbbb6c410ac5062d37836d6f1682cc7980033ea92985
- 0x49b1d1fc84d79745d12cc204f22693c996ba6725953f420671c4450395529c3f
- 0x6c285697fe6c64ea59b7d868484da51f99326ca93e4e568c83888330b7ec307e
- 0xe5595cb4ee9a83cc4a9c91e3e975a6b66f139192057d0d7b0f1732ef4aeb0122
- 0x403f3e0e69e3969cd195ccfe8c1f9f80fff4a1cc2b389659a02b3c422fdf30a4
- 0x430de89a7f0b474d11815f3084e0b737d525c75d32ebe578d1017240df7f7f8e
- 0xed6ccdb33d879447c6d83d305f8eb7ad81bd239ab3d5125bee4802238513a98f
- 0xc0b44de1e596907cac8e5c73f562269a1f6f98096081d32e346a6ef68a9b3843
- 0x2c3b7cfe0eedcaf62de3a3cb4a2c0ef97e866e6e41191a5ffb58de967e516348
- 0xfee33ee0189dc82c649bd0324796a297b897507b2fddbbe2eff331c40c960ce2
- 0x239fd39716710e7412bd120c373072b4c0d8b11bb9ee431dad62a2ce57b3d6f4
- 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
- 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae