← The evidence ledger
Evidence row 418356
Observed , by sync.agentic_market/1.
- Kind
- listing
- About
- source_record agentic_market:x402-fairseal-io
- Recorded
- Previous row
- #4463
- Body SHA-256
- 89da22f81fe13f32173273504236d80464c305dbc14ae17c2441c8d9a54aa51a
- Leaf
- 0xe766f3ec0f5dfc8c5cb7eb5e3d673ac2c3b25452b874fd4518898f592a059c15
What was observed
{
"endpoints": [
[
"x402",
"https://x402.fairseal.io/v1/notarize"
],
[
"x402",
"https://x402.fairseal.io/v1/pii/detect"
],
[
"x402",
"https://x402.fairseal.io/v1/rng/latest"
],
[
"x402",
"https://x402.fairseal.io/v1/veo/verify"
],
[
"x402",
"https://x402.fairseal.io/v2/anchor"
]
],
"name": "x402.fairseal.io",
"owner_address": null,
"raw": {
"caip2_networks": [
"eip155:8453"
],
"category": "",
"description": "",
"domain": "x402.fairseal.io",
"endpoints": [
{
"description": "Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s). Include Idempotency-Key header to prevent double-charges on retry.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": null,
"group": "body",
"name": "metadata",
"required": false,
"type": "object"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"group": "body",
"name": "payload_hash",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "agent_decision",
"group": "body",
"name": "schema",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.05",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "9",
"l30DaysUniquePayers": "2"
},
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v1/notarize"
},
{
"description": "Scan and redact PII from text before storing or sharing. Detects emails, phone numbers, credit cards (Luhn-checked), SSNs, IDs, passports, and IPv4 addresses. Returns sanitized text. Max 50,000 chars. Expect some false positives; non-North American phone formats not matched.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "Contact alice@example.com or call 555-867-5309. SSN: 123-45-6789.",
"group": "body",
"name": "text",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.001",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "10",
"l30DaysUniquePayers": "4"
},
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v1/pii/detect"
},
{
"description": "Provably fair random numbers, commit-reveal protocol. SHA-256 commit is free (POST /v1/rng/commit); pay $0.01 to reveal a verifiable random number backed by a cryptographic VDF chain with on-chain Merkle anchor. Bias-resistant; do not construct reveal paths yourself.",
"method": "GET",
"parameters": [],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "14",
"l30DaysUniquePayers": "5"
},
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v1/rng/latest"
},
{
"description": "Provably fair random numbers, commit-reveal protocol. SHA-256 commit is free (POST /v1/rng/commit); pay $0.01 to reveal a verifiable random number backed by a cryptographic VDF chain with on-chain Merkle anchor. Bias-resistant; do not construct reveal paths yourself.",
"method": "POST",
"parameters": [],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v1/rng/latest"
},
{
"description": "Verify and validate AI agent output integrity. Checks structure, SHA-256 hash, and optional cryptographic proof signature. Returns a per-check verdict. Accepts VEO-2 compliant output objects. Use to confirm an AI output has not been tampered with before acting on it.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": null,
"group": "body",
"name": "confidence",
"required": false,
"type": "object"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": null,
"group": "body",
"name": "execution",
"required": false,
"type": "object"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "2026-09-12T10:00:00Z",
"group": "body",
"name": "issued_at",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "VEO-2A",
"group": "body",
"name": "object_class",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "veo-abc123",
"group": "body",
"name": "object_id",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": null,
"group": "body",
"name": "provider",
"required": false,
"type": "object"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "VEO",
"group": "body",
"name": "standard",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "2.0",
"group": "body",
"name": "version",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.02",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "5",
"l30DaysUniquePayers": "3"
},
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v1/veo/verify"
},
{
"description": "Create a tamper-proof on-chain record of any content hash. Submit a SHA-256 hash; returns a cryptographic proof of existence anchored to Base mainnet via Merkle batch. Poll status_url for verifiable receipt with on-chain tx hash. $0.02 USDC per anchor. Audit trail for AI decisions or documents.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": null,
"group": "body",
"name": "metadata",
"required": false,
"type": "object"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"group": "body",
"name": "payload_hash",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "batch",
"group": "body",
"name": "tier",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.02",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "6",
"l30DaysUniquePayers": "2"
},
"serviceName": "",
"tags": [],
"url": "https://x402.fairseal.io/v2/anchor"
}
],
"enriched": false,
"iconUrl": "",
"id": "x402-fairseal-io",
"integrationType": "",
"isNew": false,
"name": "x402.fairseal.io",
"networks": [
"Base"
],
"priceSummary": {
"avgCostBasis": "exact",
"avgCostPerTransaction": "0.0185",
"currency": "USDC",
"maxAmount": "0.05",
"minAmount": "0.001"
},
"provider": "x402.fairseal.io",
"providerUrl": "",
"serviceName": "",
"tags": []
},
"source": "agentic_market",
"summary": ""
}What the leaf hashes
{"body":"89da22f81fe13f32173273504236d80464c305dbc14ae17c2441c8d9a54aa51a","id":418356,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793081108645070,"prev":4463,"subject":"agentic_market:x402-fairseal-io","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0xe766fa5d0266ccc890c85db0006690f965c2bbd075bfb1304c3a79bea5c006b7
- 0xc89aa9ae5aa44b1971e024b76cf39d414e9536afd2ecf76466c987674d333590
- 0x98a69116b9c8d2a777cb146b579b7d7b59c0496d9a6ca299fc99ff30e9681458
- 0xed5f4694bfce2ff1e46c1bb4be0ac61e1990bf1540b709d3c154ad44d646c4ca
- 0xf8c7dfa51378e3af29d393b2cbdaafc740bdb2b6990c1365166d2b37d00df8eb
- 0xc176251853d07167d624063f6ca5e7ff188a8601eea1c64672a24ae638eae36f
- 0xa2ca41fba3d41d46f7ed204965ee7763cfd9fdf8e690f9e82faeb5b899aad123
- 0xc9b39c451a8bd68c2f0c0cebb1729d4ebc8f244626e519e18b5f5b2374acab06
- 0x48607948b1a6f6648c0b2b4588c857ec3b1612f588aaf272f82a983e1dafddd2
- 0xae45a0b127be15a79b0a29d4da96c66c7de866604dc96ff1ebad427f8e281dce
- 0x71c8691e7266a630f55422792837d4ddf268c83444f68d63c646c42b70b5ded5
- 0x4f9b484326a98846a2342f967ce1e64ee9fa304288bb4355ab666475eb77b61c
- 0xab6eb305329046d5ccb835dd8ca955f794e3ca110379a94dbdc780d016448561
- 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
- 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
- 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
- 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4