{ "x402Version": 2, "id": 33270, "slug": "33270", "resource": "https://fractalai.net.co/api/x402/attest-decision", "description": "Pay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 204) signed, Black-Box chained, on-chain anchored (VAID-1). Returns a re-verifiable receipt. Built for EU AI Act Art.12 record-keeping. x402-native.", "type": "http", "serviceName": "FractalAI Notary", "resourceType": "Payments", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "50000", "amountUsd": 0.05, "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "50000", "amountUsd": 0.05, "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:137", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x12050c705152931cFEe3DD56c52Fb09Dea816C23", "amount": "159730000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xF197FFC28c23E0309B5559e7a166f2c6164C80aA", "amount": "912800", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:42161", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xF197FFC28c23E0309B5559e7a166f2c6164C80aA", "amount": "912800", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:137", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xE6A537a407488807F0bbeb0038B79004f19DDDFb", "amount": "249500000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:137", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x4eD141110F6EeeAbA9A1df36d8c26f684d2475Dc", "amount": "249500000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:480", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x0DC4F92879B7670e5f4e4e6e3c801D229129D90D", "amount": "75850000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x0DC4F92879B7670e5f4e4e6e3c801D229129D90D", "amount": "75850000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:480", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xD76f5Faf6888e24D9F04Bf92a0c8B921FE4390e0", "amount": "249500000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xD76f5Faf6888e24D9F04Bf92a0c8B921FE4390e0", "amount": "249500000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:480", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x337E7456B420bD3481e7FA61fA9850343d610d34", "amount": "912800000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x337E7456B420bD3481e7FA61fA9850343d610d34", "amount": "912800000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:480", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x8a1D45e102e886510e891d2Ec656a708991e2D76", "amount": "159730000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:8453", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x8a1D45e102e886510e891d2Ec656a708991e2D76", "amount": "159730000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:137", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x55cF6b630d8AE6477DF63e194F0fd80ACFf05f86", "amount": "159730000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:42220", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0x8A567e2aE79CA692Bd748aB832081C45de4041eA", "amount": "159730000000000000000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:42220", "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f", "asset": "0xe8537a3d056DA446677B9E9d6c5dB704EaAb4787", "amount": "249500000000000000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "properties": { "example": { "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" }, "extensions": { "bazaar": { "body": { "agent_id": "agent-42", "input": "ctx", "output": "decision" }, "bodyType": "json", "description": "Pay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 204) signed, Black-Box chained, on-chain anchored (VAID-1). Returns a re-verifiable receipt. Built for EU AI Act Art.12 record-keeping. x402-native.", "info": { "input": { "body": { "agent_id": "agent-42", "input": "ctx", "output": "decision" }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "algorithm": "ml-dsa-65", "attestation_hash": "0x…", "permalink": "https://fractalai.net.co/attestation/0x…", "signature": "BASE64_ML_DSA65" }, "type": "json" } }, "method": "POST", "output": { "example": { "algorithm": "ml-dsa-65", "attestation_hash": "0x…", "permalink": "https://fractalai.net.co/attestation/0x…", "signature": "BASE64_ML_DSA65" }, "schema": { "properties": { "algorithm": { "description": "ml-dsa-65 (the served signature algorithm).", "type": "string" }, "attestation_hash": { "description": "On-chain (VAID-1) attestation hash — re-verifiable proof the decision was sealed.", "type": "string" }, "entry_hash": { "description": "Black Box entry hash: sha256 of the chained, canonical decision content.", "type": "string" }, "entry_public_key": { "description": "Base64 Dilithium-3 public key that verifies entry_signature.", "type": "string" }, "entry_signature": { "description": "Base64 Dilithium-3 (NIST FIPS 204) signature over the Black-Box entry hash — the chained on-chain-anchored seal.", "type": "string" }, "input_hash": { "description": "sha256 of the declared input.", "type": "string" }, "output_hash": { "description": "sha256 of the declared output.", "type": "string" }, "payment": { "description": "Settlement receipt (scheme, network, asset, txHash, payer, settled).", "type": "object" }, "permalink": { "description": "Permalink to the on-chain Dilithium-3 anchor (VAID-1), when the L1 anchor succeeds.", "type": "string" }, "prev_hash": { "description": "Hash of the previous Black Box entry this one is chained to (tamper-evident order).", "type": "string" }, "public_key": { "description": "Base64 ML-DSA-65 public key (1952 bytes) that verifies the served signature.", "type": "string" }, "seq": { "description": "Append-only sequence number of this decision in the agent Black Box.", "type": "number" }, "signature": { "description": "Base64 ML-DSA-65 / Dilithium-3 (NIST FIPS 204) SERVED signature (3309 bytes) over the EXACT bytes echoed in `signed_message` = FRACTALAI-x402-served-v1\\nx402-attest-decision\\n (route-separated, 3 lines). Verify offline: ml_dsa65.verify(b64(signature), utf8(signed_message), b64(public_key)).", "type": "string" }, "signed_message": { "description": "The EXACT UTF-8 bytes the served signature covers (FRACTALAI-x402-served-v1\\nx402-attest-decision\\n). Pass verbatim to ml_dsa65.verify.", "type": "string" } }, "required": [ "entry_hash", "input_hash", "output_hash", "signature", "public_key" ], "type": "object" }, "type": "json" }, "route_key": "POST /api/x402/attest-decision", "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "headers": { "additionalProperties": { "type": "string" }, "type": "object" }, "method": { "enum": [ "POST", "PUT", "PATCH" ], "type": "string" }, "queryParams": { "additionalProperties": { "type": "string" }, "type": "object" }, "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" }, "serviceName": "FractalAI Notary", "tags": [ "ai-provenance", "decision", "audit", "eu-ai-act", "on-chain" ], "type": "http" } }, "tags": [ "ai-provenance", "decision", "audit", "eu-ai-act", "on-chain", "bazaar" ], "sourceHost": "fractalai.net.co", "lastUpdated": "2026-10-12T20:27:35.365Z", "quality": { "calls30d": 8, "uniquePayers30d": 4, "lastCalledAt": "2026-10-12T20:27:34.86Z" }, "metadata": { "serviceName": "FractalAI Notary", "extensions": { "bazaar": { "body": { "agent_id": "agent-42", "input": "ctx", "output": "decision" }, "bodyType": "json", "description": "Pay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 204) signed, Black-Box chained, on-chain anchored (VAID-1). Returns a re-verifiable receipt. Built for EU AI Act Art.12 record-keeping. x402-native.", "info": { "input": { "body": { "agent_id": "agent-42", "input": "ctx", "output": "decision" }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "algorithm": "ml-dsa-65", "attestation_hash": "0x…", "permalink": "https://fractalai.net.co/attestation/0x…", "signature": "BASE64_ML_DSA65" }, "type": "json" } }, "method": "POST", "output": { "example": { "algorithm": "ml-dsa-65", "attestation_hash": "0x…", "permalink": "https://fractalai.net.co/attestation/0x…", "signature": "BASE64_ML_DSA65" }, "schema": { "properties": { "algorithm": { "description": "ml-dsa-65 (the served signature algorithm).", "type": "string" }, "attestation_hash": { "description": "On-chain (VAID-1) attestation hash — re-verifiable proof the decision was sealed.", "type": "string" }, "entry_hash": { "description": "Black Box entry hash: sha256 of the chained, canonical decision content.", "type": "string" }, "entry_public_key": { "description": "Base64 Dilithium-3 public key that verifies entry_signature.", "type": "string" }, "entry_signature": { "description": "Base64 Dilithium-3 (NIST FIPS 204) signature over the Black-Box entry hash — the chained on-chain-anchored seal.", "type": "string" }, "input_hash": { "description": "sha256 of the declared input.", "type": "string" }, "output_hash": { "description": "sha256 of the declared output.", "type": "string" }, "payment": { "description": "Settlement receipt (scheme, network, asset, txHash, payer, settled).", "type": "object" }, "permalink": { "description": "Permalink to the on-chain Dilithium-3 anchor (VAID-1), when the L1 anchor succeeds.", "type": "string" }, "prev_hash": { "description": "Hash of the previous Black Box entry this one is chained to (tamper-evident order).", "type": "string" }, "public_key": { "description": "Base64 ML-DSA-65 public key (1952 bytes) that verifies the served signature.", "type": "string" }, "seq": { "description": "Append-only sequence number of this decision in the agent Black Box.", "type": "number" }, "signature": { "description": "Base64 ML-DSA-65 / Dilithium-3 (NIST FIPS 204) SERVED signature (3309 bytes) over the EXACT bytes echoed in `signed_message` = FRACTALAI-x402-served-v1\\nx402-attest-decision\\n (route-separated, 3 lines). Verify offline: ml_dsa65.verify(b64(signature), utf8(signed_message), b64(public_key)).", "type": "string" }, "signed_message": { "description": "The EXACT UTF-8 bytes the served signature covers (FRACTALAI-x402-served-v1\\nx402-attest-decision\\n). Pass verbatim to ml_dsa65.verify.", "type": "string" } }, "required": [ "entry_hash", "input_hash", "output_hash", "signature", "public_key" ], "type": "object" }, "type": "json" }, "route_key": "POST /api/x402/attest-decision", "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "headers": { "additionalProperties": { "type": "string" }, "type": "object" }, "method": { "enum": [ "POST", "PUT", "PATCH" ], "type": "string" }, "queryParams": { "additionalProperties": { "type": "string" }, "type": "object" }, "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" }, "serviceName": "FractalAI Notary", "tags": [ "ai-provenance", "decision", "audit", "eu-ai-act", "on-chain" ], "type": "http" } } }, "liveness": { "reliability": null }, "verified": false, "featured": false, "provider": { "host": "fractalai.net.co", "manifest_name": "fractalai.net.co", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-10-14T01:15:01.050Z" }, "exampleResponse": { "example": {}, "type": "string" } }