← The evidence ledger
Evidence row 3065060
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.oldcolonyweb.com/v1/email/verify
- Recorded
- Previous row
- #2632897
- Body SHA-256
- 831763a8d021fd91e2d6a2c7cd36bd0cf5a089fa5c6a660ccf97c5608a435732
- Leaf
- 0xd2970ea411fed78082f17c6ce0fc043be28591dc3ee33f568bfa06aa08971a54
What was observed
{
"endpoints": [
[
"x402",
"https://api.oldcolonyweb.com/v1/email/verify"
]
],
"name": "Old Colony Web Agent Services",
"owner_address": "0x1403ddf1151e0dd4fa68b06cc9cbf7d55cbe2062",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x1403ddf1151E0DD4Fa68B06CC9cbf7D55cBe2062",
"scheme": "exact"
}
],
"description": "For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retention, mailbox-existence, deliverability or consent guarantee.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"email": "name@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"decision": {
"action": "proceed",
"next_step": "Continue the workflow only if mailbox verification and consent requirements are separately satisfied.",
"reasons": [
"syntax_valid",
"domain_dns_present",
"mx_present"
]
},
"domain": {
"disposable_evidence": {
"scope": "limited observed-domain list; false means not listed",
"snapshot_date": "2026-10-08",
"source": "castle/disposable-email-domains"
},
"disposable_provider": false,
"dns_found": true,
"free_provider": false,
"mx_present": true,
"normalized": "example.com",
"typo_suggestion": null
},
"email": {
"normalized": "name@example.com",
"role_address": false,
"syntax_valid": true
},
"limitations": [
"Mailbox existence was not checked.",
"This result is not a guarantee of deliverability or consent to contact."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"status": "complete"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"email": {
"description": "Email address to inspect using deterministic syntax and domain/DNS evidence.",
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-03T18:56:19.559Z",
"quality": {
"l30DaysTotalCalls": 20,
"l30DaysUniquePayers": 9,
"lastCalledAt": "2026-11-03T18:56:19.148Z"
},
"resource": "https://api.oldcolonyweb.com/v1/email/verify",
"serviceName": "Old Colony Web Agent Services",
"tags": [
"email verification",
"email validation",
"disposable email",
"email preflight",
"email typo"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retention, mailbox-existence, deliverability or consent guarantee."
}What the leaf hashes
{"body":"831763a8d021fd91e2d6a2c7cd36bd0cf5a089fa5c6a660ccf97c5608a435732","id":3065060,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793822236631323,"prev":2632897,"subject":"x402_bazaar:https://api.oldcolonyweb.com/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 (424109 rows).
- 0xd2970813feda33a2a0be5a9f41eb2c291e788d27081d77d97cb2fdf433b83577
- 0x57e56017d96393d7fb9ca1855ab058650cfcd27c9b231b9ab16db8e9ce927f70
- 0xccdd536d4881f5bee9a1039ceec1226279dba45edc701a83992c6260cb257e58
- 0x29f8a8e1b888e3307f3f24b140619344dbfc040e74454ccdfd73b80236f68a87
- 0x6b6da7e6838e45c2c146bca0e0151cf17b0442c4a5b31f7d42f8cbb07b7c937b
- 0xb36ed2f269615bb8a0eea7dc6d7127c56e07648be3e397e0dc73fda36bccc559
- 0xd9ddb713150a3762ad637c36eebe1091b8c24e9b10f98dc4d770ba9bdfe24258
- 0x15b70679e78ae4fb1a3236216f9a6748597095b847d068a27327e9018e199337
- 0xac53449229a5b6fb00eede233132a6afa814f35b3dc5d2ca330797285e526ede
- 0xce1e9e8d254f27d99c43a8028db464346c8de71ffab671f2b47efdbe0eb2d8b1
- 0xb63ef22ba23f917342d9eb15d870d066ff2aea82b342581dc7ec379ecbe5e3cd
- 0x994f3a588a2bcb025101adaa53f8d758f94095b9881566d32e8144b5acae81c5
- 0x7aa20865bc146bd84244e43c76a656223f6ff2ff202f5dd1f00a0ddaac745441
- 0x03ea806e63a95e128d81599dc6b08c8f2b05b08552c9e838b2c22d401a8c3dbe
- 0x967a13436a6fe02491b940f63f3275048d17df8ea0d3831beb3e7ebf52a46e50
- 0x1ea547989ac488dff8da9e79b0ab4cffe98cb60fb4c76ae15e4a1f53a247e0be
- 0x7efb735f8d49bcac59a20b148718d382f32a05352c0255ebbd501ca73055453d
- 0x9c1c771179da4a002386557e8601b2d4983c3e366808477ee20da18c282c1dd8
- 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34
- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345