← The evidence ledger
Evidence row 73141
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://data.greeneris.io/v1/validate/email
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b1d535700bd46b4979e123e7b43b4af696e606b1834c82a233217ed645e59b70
- Leaf
- 0xb1be0314018b61d2d896dc175aee39da8cb675c3bf2116919f05a5ea2d27b817
What was observed
{
"endpoints": [
[
"x402",
"https://data.greeneris.io/v1/validate/email"
]
],
"name": "eu-verify",
"owner_address": "0x6ab8efe305cce67daa48c97bde29c04402822dff",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff",
"scheme": "exact"
}
],
"description": "One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback). Detects non-existent domains (NXDOMAIN), null-MX domains that refuse mail (RFC 7505), and returns prioritized MX hosts. Query: ?email=someone@example.com. Verdict: deliverable | risky | undeliverable. 1h cache per address.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"email": "contact@anthropic.com"
},
"type": "http"
},
"output": {
"example": {
"domain": "anthropic.com",
"domain_exists": true,
"email": "contact@anthropic.com",
"has_mx": true,
"is_null_mx": false,
"mx_hosts": [
{
"host": "aspmx.l.google.com",
"priority": 1
}
],
"source": "live MX lookup via Cloudflare 1.1.1.1 DoH (Google DNS fallback)",
"syntax_valid": true,
"verdict": "deliverable"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"email": {
"description": "Email address to verify (max 254 chars)",
"type": "string"
}
},
"required": [
"email"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-15T07:15:30.347Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-15T07:15:30.076Z"
},
"resource": "https://data.greeneris.io/v1/validate/email",
"serviceName": "eu-verify",
"tags": [
"email",
"verification",
"deliverability",
"mx",
"leads"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback). Detects non-existent domains (NXDOMAIN), null-MX domains that refuse mail (RFC 7505), and returns prioritized MX hosts. Query: ?email=someone@example.com. Verdict: deliverable | risky | undeliverable. 1h cache per address."
}What the leaf hashes
{"body":"b1d535700bd46b4979e123e7b43b4af696e606b1834c82a233217ed645e59b70","id":73141,"kind":"listing","method":"baseline/1","observed_us":1793025487083833,"prev":null,"subject":"x402_bazaar:https://data.greeneris.io/v1/validate/email","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).
- 0xb1bdf7e8cb13a8bf39edf386df3c2d78090406f7c20747d51dd7557a5c1705d3
- 0x5f515924f34a0e149525d6dce38baaccc7e34f115425aa222e86572f946ec8a6
- 0xdf96652ac556cef6bcd8d784d67664a71d8da9de608d09be60dd68434f561a0c
- 0xaaea1b00d284ccbac350c08de5c65c4695bddedef70402dced11bd40dac24091
- 0x577ab5ab52ffa3cbbb924eefb33828aece5e0845bf6fa40bec8af1d30dc44f57
- 0x24653cae31d09809d97a3f52a3344b8cf7cbe38e344cf6b4ad7f76f4144ac70d
- 0x00c6ccf16b0b75646a0fa8007cfa038004d9a846b921d765ecd3ed3d37d66264
- 0x6df0714894684e47af85e4a14ab2453d235d331de146807dd067df0f1fe44631
- 0xce7b52aea929e25bddd38b0f456f23a397675312e4cb7db15eb3b5cd4faf39c1
- 0xd5cd216c2216432b3046cca4e23b3c34d41ceff1aa810aa4eea5bd58437939ce
- 0xb673e7e79847b2398685ec91a7c3b2395fccef249a8f8983b5eecc97a794a3ec
- 0xce1aeb889b974291cea1fbfd01595655bd2c1b3636dc5b56eeb8904adb9f6c65
- 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
- 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae