← The evidence ledger
Evidence row 4165637
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://tanod.dev/v1/email/verify
- Recorded
- Previous row
- #3965917
- Body SHA-256
- 7cc36d8a2de0fb0f92f6dfb3292d227b838f1a689362750b4a17de34fb90b79e
- Leaf
- 0xbab0c2523af7c03d8b03ef50014c95885ebfb8214e929f528eebc30f98a54fe9
What was observed
{
"endpoints": [
[
"x402",
"https://tanod.dev/v1/email/verify"
]
],
"name": "Tanod dnspeek",
"owner_address": "0x593857a4a4f619543ea12394137c3004ce841720",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
"scheme": "exact"
},
{
"amount": "1000000000000000",
"asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
"extra": {
"assetTransferMethod": "permit2",
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:56",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:8453",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
},
{
"amount": "1000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:137",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
"scheme": "exact"
}
],
"description": "Verify an email address: check its syntax and DNS (MX) to see whether it can receive mail, no SMTP. Input: email. Returns a verdict, MX hosts and disposable, role and free-provider flags. Use when an agent must decide whether an email address looks deliverable before sending or storing it.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"email": "postmaster@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"disposable": false,
"domain": "gmail.com",
"email": "someone@gmail.com",
"free_provider": true,
"has_mx": true,
"implicit_mx": false,
"local_part": "someone",
"mx_hosts": [
"gmail-smtp-in.l.google.com",
"alt1.gmail-smtp-in.l.google.com"
],
"normalized": "someone@gmail.com",
"notes": [
"DNS-only check: the mail server was not contacted, so mailbox existence is not verified"
],
"null_mx": false,
"reasons": [
"free_provider"
],
"role_account": false,
"smtp_checked": false,
"syntax_valid": true,
"verdict": "deliverable_likely"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"email": {
"description": "The email address to check.",
"maxLength": 320,
"minLength": 1,
"type": "string"
}
},
"required": [
"email"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"disposable": {
"type": "boolean"
},
"domain": {
"type": [
"string",
"null"
]
},
"email": {
"type": "string"
},
"free_provider": {
"type": "boolean"
},
"has_mx": {
"type": "boolean"
},
"implicit_mx": {
"type": "boolean"
},
"local_part": {
"type": [
"string",
"null"
]
},
"mx_hosts": {
"items": {
"type": "string"
},
"type": "array"
},
"normalized": {
"type": [
"string",
"null"
]
},
"notes": {
"type": "array"
},
"null_mx": {
"type": "boolean"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"role_account": {
"type": "boolean"
},
"smtp_checked": {
"type": "boolean"
},
"syntax_valid": {
"type": "boolean"
},
"verdict": {
"enum": [
"deliverable_likely",
"undeliverable",
"risky",
"unknown"
],
"type": "string"
}
},
"required": [
"email",
"normalized",
"syntax_valid",
"domain",
"has_mx",
"mx_hosts",
"null_mx",
"disposable",
"role_account",
"free_provider",
"verdict",
"reasons",
"smtp_checked"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_h7pxv14u"
},
"schema": {
"additionalProperties": false,
"properties": {
"a": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
},
"erc20ApprovalGasSponsoring": {
"info": {
"description": "The facilitator accepts a raw signed approval transaction and will sponsor the gas fees.",
"version": "1"
},
"schema": {
"properties": {
"amount": {
"pattern": "^[0-9]+$",
"type": "string"
},
"asset": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"from": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"signedTransaction": {
"pattern": "^0x[a-fA-F0-9]+$",
"type": "string"
},
"spender": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"version": {
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"type": "string"
}
},
"required": [
"from",
"asset",
"spender",
"amount",
"signedTransaction",
"version"
],
"type": "object"
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791364949/bazaar-icons/d8143c9bc952f5cd.png",
"lastUpdated": "2026-11-01T07:08:10.734Z",
"quality": {
"l30DaysTotalCalls": 7,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-11-01T07:08:10.033Z"
},
"resource": "https://tanod.dev/v1/email/verify",
"serviceName": "Tanod dnspeek",
"tags": [
"email-verification",
"email",
"validation",
"deliverability",
"dnspeek"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Verify an email address: check its syntax and DNS (MX) to see whether it can receive mail, no SMTP. Input: email. Returns a verdict, MX hosts and disposable, role and free-provider flags. Use when an agent must decide whether an email address looks deliverable before sending or storing it."
}What the leaf hashes
{"body":"7cc36d8a2de0fb0f92f6dfb3292d227b838f1a689362750b4a17de34fb90b79e","id":4165637,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794170440457870,"prev":3965917,"subject":"x402_bazaar:https://tanod.dev/v1/email/verify","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (183509 rows).
- 0xbab06ab4ed510ff6da63b18c2958c711cea7dd4afb18c4803e5a3a3c931381e1
- 0x30fabfbc02a674a79d2df5cc41a24979ba28e94ac0f1da983d2a7cf9f30d7c45
- 0x4c5e33276a70e90d88225234faa6994ae65d40eb0a49315b4d7b79fe51cb7856
- 0x68b4b2aced390afbf9eb2be2dde146b0a946d905935fc6fe4ea0ab799a757ef8
- 0x186ef550848aadca122677eabf26fbcdbb026f39d8da9652509160512add2969
- 0x7fab11421a690973ed715c9fb097a80fdccdb3321effb0b5df91c5efc1510322
- 0x0eb4bac21701cad5e691a07fc8688022eedafcaa39f87b3784e2bc7c12965024
- 0x4ad48b013c3abcee942e9f7c4f82587fd4b71db25bb12ba83ad6affa2655d39a
- 0x91828c11e9dfca5596d54ec1ad248405e2dd3ddde398f878c814738323f0f4d2
- 0xca5f5b134a409143e278a1efbda1703580e68d5de705b3819549967c0d9ccd2b
- 0xd19e12949e7ecfd1f82bf98816b1ff31e849dd1a63c81b14f98eb889edd628bd
- 0x02d51beb4eddacea0b2b2d82574ce3c6ebd69e7ed1c34582b30fcdc6ed83eefb
- 0x678bb35f5c649ee42f25bfc68591996d224632b8bba270c2d0cdc93315ad6c8b
- 0x7b6d8ccd7b9d06a82dac45c61590eeafcd32ea8a48cef64fe2e047d2ed708d0e
- 0xb08e7a1a141319c9abe5b3142004cd0e97f72d69e6569ea2cf6374a53deeeab6
- 0x274128ec5f837e2602d2e74887d9033f81856e8596e26f227d06cacaadcd00d2
- 0x2d9754fdf3b1fe7b0030b55b1fe7e859e5c53291df3d09cef34b31423a50dc18
- Day root
- 0xbf84ec37f88c5f23d2144bd7dbc1ea0f8edc93b3764a885a7164b7923ff3460b
- Chained
- 0x9fea188e4965f50de727e97c40e18d5ff2c2ddbfd4f1ae65e22ddd6f676bccfc
- Published
- On Arc Testnet, block 71451618: 0xb5273480942a54cd07f291b8319e59976f8d9d0583181c764eed04c9b3f7a022