{ "x402Version": 2, "id": 54606, "slug": "54606", "resource": "https://nova-retail-controlled-proof.onrender.com/retail/v1/context/state-ping", "description": "Nova retail state_ping context resource", "type": "http", "resourceType": "Utilities", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0xd764F1B590476657c20AB754beaCE9eBC1D9D0E3", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "2000", "amountUsd": 0.002, "maxTimeoutSeconds": 60 } ], "outputSchema": { "additionalProperties": false, "properties": { "example": { "type": "object" }, "type": { "const": "json" } }, "required": [ "type", "example" ], "type": "object" }, "extensions": { "bazaar": { "info": { "input": { "body": { "generated_at": "2026-09-09T20:00:00Z", "observations": [ { "authority_effect": "none", "claims": [ { "claim_id": "market_pair_last_price", "claim_or_observation": "last_price=100000 BTC-USD", "claim_status": "observed" } ], "freshness_input": { "derivation_status": "derived_from_timestamps", "source_age_seconds": 0 }, "integrity": { "algorithm": "sha256", "digest": "c5df653ec6f407c32fdca147310a463c471999aee6839ee35e6d418eb7c2669b", "scope": "normalized_claims", "trust_semantics": "content_identity_only" }, "limitations": [ { "description": "Example source observation; authority remains source-scoped.", "impact": "limited_scope", "limitation_id": "example-source-scope" } ], "observation_id": "external-example-observation", "observed_at": "2026-09-09T20:00:00Z", "provenance": { "normalization_version": "0.1.0", "provider_observation_reference": "provider-reference-example", "retrieval_mode": "provider_adapter", "verification_basis": "not_verified" }, "received_at": "2026-09-09T20:00:00Z", "schema_version": "0.1.0", "source_id": "coinbase_exchange_ticker", "source_status": "observed", "subject": { "label": "BTC/USD", "subject_id": "BTC-USD", "subject_type": "market_pair" }, "verification_status": "unverified" } ], "subject": { "label": "BTC/USD", "subject_id": "BTC-USD", "subject_type": "market_pair" } }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "authority_effect": "none", "context_status": "partially_resolved", "contradictions": [], "evidence": [], "limitations": [], "provenance": [], "resource_type": "state_ping", "unresolved_evidence": [] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "input": { "additionalProperties": false, "properties": { "body": { "$defs": { "claim": { "additionalProperties": false, "properties": { "claim_id": { "maxLength": 200, "minLength": 1, "type": "string" }, "claim_or_observation": { "maxLength": 4000, "minLength": 1, "type": "string" }, "claim_status": { "enum": [ "observed", "unresolved", "rejected" ] } }, "required": [ "claim_id", "claim_or_observation", "claim_status" ], "type": "object" }, "freshnessInput": { "additionalProperties": false, "properties": { "derivation_status": { "enum": [ "derived_from_timestamps", "not_available" ] }, "source_age_seconds": { "minimum": 0, "type": [ "integer", "null" ] } }, "required": [ "source_age_seconds", "derivation_status" ], "type": "object" }, "integrity": { "additionalProperties": false, "properties": { "algorithm": { "enum": [ "sha256", "none" ] }, "digest": { "pattern": "^[a-f0-9]{64}$", "type": [ "string", "null" ] }, "scope": { "enum": [ "normalized_claims", "no_content" ] }, "trust_semantics": { "const": "content_identity_only" } }, "required": [ "algorithm", "digest", "scope", "trust_semantics" ], "type": "object" }, "limitation": { "additionalProperties": false, "properties": { "description": { "maxLength": 4000, "minLength": 1, "type": "string" }, "impact": { "enum": [ "none_known", "limited_scope", "material", "indeterminate" ] }, "limitation_id": { "maxLength": 200, "minLength": 1, "type": "string" } }, "required": [ "limitation_id", "description", "impact" ], "type": "object" }, "provenance": { "additionalProperties": false, "properties": { "normalization_version": { "const": "0.1.0" }, "provider_observation_reference": { "maxLength": 500, "type": [ "string", "null" ] }, "retrieval_mode": { "enum": [ "fixture", "synthetic", "provider_adapter" ] }, "verification_basis": { "enum": [ "fixture_contract", "source_reference_check", "not_verified", "verification_failed", "not_applicable" ] } }, "required": [ "provider_observation_reference", "retrieval_mode", "verification_basis", "normalization_version" ], "type": "object" }, "publicSourceObservation": { "additionalProperties": false, "allOf": [ { "if": { "properties": { "source_status": { "enum": [ "observed", "stale" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "claims": { "minItems": 1 }, "freshness_input": { "properties": { "derivation_status": { "const": "derived_from_timestamps" }, "source_age_seconds": { "minimum": 0, "type": "integer" } } }, "integrity": { "properties": { "algorithm": { "const": "sha256" }, "digest": { "pattern": "^[a-f0-9]{64}$", "type": "string" }, "scope": { "const": "normalized_claims" } } }, "observed_at": { "format": "date-time", "type": "string" }, "provenance": { "properties": { "provider_observation_reference": { "minLength": 1, "type": "string" } } } } } }, { "if": { "properties": { "source_status": { "enum": [ "unavailable", "rejected", "unknown" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "claims": { "maxItems": 0 }, "freshness_input": { "properties": { "derivation_status": { "const": "not_available" }, "source_age_seconds": { "type": "null" } } }, "integrity": { "properties": { "algorithm": { "const": "none" }, "digest": { "type": "null" }, "scope": { "const": "no_content" } } }, "verification_status": { "enum": [ "unverified", "verification_failed", "not_applicable" ] } } } }, { "if": { "properties": { "source_status": { "enum": [ "unavailable", "unknown" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "observed_at": { "type": "null" }, "provenance": { "properties": { "provider_observation_reference": { "type": "null" } } } } } }, { "if": { "properties": { "verification_status": { "const": "verified" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "enum": [ "fixture_contract", "source_reference_check" ] } } } } } }, { "if": { "properties": { "verification_status": { "const": "unverified" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "not_verified" } } } } } }, { "if": { "properties": { "verification_status": { "const": "verification_failed" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "verification_failed" } } } } } }, { "if": { "properties": { "verification_status": { "const": "not_applicable" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "not_applicable" } } } } } }, { "if": { "properties": { "source_status": { "enum": [ "observed", "stale" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "not_verified" } } }, "verification_status": { "const": "unverified" } } } } ], "description": "Bounded normalized evidence emitted by a retail source adapter.", "properties": { "authority_effect": { "const": "none" }, "claims": { "items": { "$ref": "#/properties/input/properties/body/$defs/claim" }, "type": "array", "uniqueItems": true }, "freshness_input": { "$ref": "#/properties/input/properties/body/$defs/freshnessInput" }, "integrity": { "$ref": "#/properties/input/properties/body/$defs/integrity" }, "limitations": { "items": { "$ref": "#/properties/input/properties/body/$defs/limitation" }, "type": "array" }, "observation_id": { "maxLength": 200, "minLength": 1, "type": "string" }, "observed_at": { "format": "date-time", "type": [ "string", "null" ] }, "provenance": { "$ref": "#/properties/input/properties/body/$defs/provenance" }, "received_at": { "format": "date-time", "type": "string" }, "schema_version": { "const": "0.1.0" }, "source_id": { "enum": [ "coinbase_exchange_ticker", "kraken_post_trade" ], "type": "string" }, "source_status": { "enum": [ "observed", "unavailable", "stale", "rejected", "unknown" ] }, "subject": { "$ref": "#/properties/input/properties/body/$defs/subject" }, "verification_status": { "enum": [ "verified", "unverified", "verification_failed", "not_applicable" ] } }, "required": [ "schema_version", "observation_id", "source_id", "subject", "observed_at", "received_at", "source_status", "verification_status", "freshness_input", "integrity", "claims", "provenance", "limitations", "authority_effect" ], "title": "Retail Source Observation v0.1", "type": "object" }, "subject": { "additionalProperties": false, "properties": { "label": { "maxLength": 200, "minLength": 1, "type": "string" }, "subject_id": { "maxLength": 200, "minLength": 1, "type": "string" }, "subject_type": { "pattern": "^[a-z][a-z0-9_]{0,63}$", "type": "string" } }, "required": [ "subject_id", "subject_type" ], "type": "object" } }, "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "generated_at": { "format": "date-time", "type": "string" }, "observations": { "items": { "$ref": "#/properties/input/properties/body/$defs/publicSourceObservation" }, "maxItems": 3, "minItems": 1, "type": "array" }, "subject": { "$ref": "#/properties/input/properties/body/$defs/subject" } }, "required": [ "subject", "observations", "generated_at" ], "type": "object", "x-nova-semantic-constraints": [ "each observation subject must equal the envelope subject", "observation_id values must be unique", "source_id values must be unique within one request", "integrity.digest must identify canonical normalized claims", "when freshness is derived from timestamps, received_at must not precede observed_at and freshness_input.source_age_seconds must equal received_at - observed_at" ] }, "bodyType": { "const": "json" }, "method": { "const": "POST" }, "type": { "const": "http" } }, "required": [ "type", "method", "bodyType", "body" ], "type": "object" }, "output": { "additionalProperties": false, "properties": { "example": { "type": "object" }, "type": { "const": "json" } }, "required": [ "type", "example" ], "type": "object" } }, "required": [ "input", "output" ], "type": "object" } }, "nova": { "accessEffect": "context_resource_access_only", "authorityEffect": "none", "paymentRequirementId": "payment-requirement-2816af1336d72def50392d5a", "pricingModel": "pay_per_context_resource", "resourceType": "state_ping", "resourceUri": "/retail/v1/context/state-ping/d47361268279c4d5c24cc841457939ae9ed96d089f35cd2157738db7a44caf09?source_binding=94529788e764d91e117999f69bb4844edae914e0d2325d4e272386fba423c6b4" } }, "tags": [ "bazaar", "nova" ], "sourceHost": "nova-retail-controlled-proof.onrender.com", "lastUpdated": "2026-10-11T20:10:52.6Z", "quality": { "calls30d": 2, "uniquePayers30d": 2, "lastCalledAt": "2026-10-11T20:10:52.276Z" }, "metadata": { "extensions": { "bazaar": { "info": { "input": { "body": { "generated_at": "2026-09-09T20:00:00Z", "observations": [ { "authority_effect": "none", "claims": [ { "claim_id": "market_pair_last_price", "claim_or_observation": "last_price=100000 BTC-USD", "claim_status": "observed" } ], "freshness_input": { "derivation_status": "derived_from_timestamps", "source_age_seconds": 0 }, "integrity": { "algorithm": "sha256", "digest": "c5df653ec6f407c32fdca147310a463c471999aee6839ee35e6d418eb7c2669b", "scope": "normalized_claims", "trust_semantics": "content_identity_only" }, "limitations": [ { "description": "Example source observation; authority remains source-scoped.", "impact": "limited_scope", "limitation_id": "example-source-scope" } ], "observation_id": "external-example-observation", "observed_at": "2026-09-09T20:00:00Z", "provenance": { "normalization_version": "0.1.0", "provider_observation_reference": "provider-reference-example", "retrieval_mode": "provider_adapter", "verification_basis": "not_verified" }, "received_at": "2026-09-09T20:00:00Z", "schema_version": "0.1.0", "source_id": "coinbase_exchange_ticker", "source_status": "observed", "subject": { "label": "BTC/USD", "subject_id": "BTC-USD", "subject_type": "market_pair" }, "verification_status": "unverified" } ], "subject": { "label": "BTC/USD", "subject_id": "BTC-USD", "subject_type": "market_pair" } }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "authority_effect": "none", "context_status": "partially_resolved", "contradictions": [], "evidence": [], "limitations": [], "provenance": [], "resource_type": "state_ping", "unresolved_evidence": [] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "input": { "additionalProperties": false, "properties": { "body": { "$defs": { "claim": { "additionalProperties": false, "properties": { "claim_id": { "maxLength": 200, "minLength": 1, "type": "string" }, "claim_or_observation": { "maxLength": 4000, "minLength": 1, "type": "string" }, "claim_status": { "enum": [ "observed", "unresolved", "rejected" ] } }, "required": [ "claim_id", "claim_or_observation", "claim_status" ], "type": "object" }, "freshnessInput": { "additionalProperties": false, "properties": { "derivation_status": { "enum": [ "derived_from_timestamps", "not_available" ] }, "source_age_seconds": { "minimum": 0, "type": [ "integer", "null" ] } }, "required": [ "source_age_seconds", "derivation_status" ], "type": "object" }, "integrity": { "additionalProperties": false, "properties": { "algorithm": { "enum": [ "sha256", "none" ] }, "digest": { "pattern": "^[a-f0-9]{64}$", "type": [ "string", "null" ] }, "scope": { "enum": [ "normalized_claims", "no_content" ] }, "trust_semantics": { "const": "content_identity_only" } }, "required": [ "algorithm", "digest", "scope", "trust_semantics" ], "type": "object" }, "limitation": { "additionalProperties": false, "properties": { "description": { "maxLength": 4000, "minLength": 1, "type": "string" }, "impact": { "enum": [ "none_known", "limited_scope", "material", "indeterminate" ] }, "limitation_id": { "maxLength": 200, "minLength": 1, "type": "string" } }, "required": [ "limitation_id", "description", "impact" ], "type": "object" }, "provenance": { "additionalProperties": false, "properties": { "normalization_version": { "const": "0.1.0" }, "provider_observation_reference": { "maxLength": 500, "type": [ "string", "null" ] }, "retrieval_mode": { "enum": [ "fixture", "synthetic", "provider_adapter" ] }, "verification_basis": { "enum": [ "fixture_contract", "source_reference_check", "not_verified", "verification_failed", "not_applicable" ] } }, "required": [ "provider_observation_reference", "retrieval_mode", "verification_basis", "normalization_version" ], "type": "object" }, "publicSourceObservation": { "additionalProperties": false, "allOf": [ { "if": { "properties": { "source_status": { "enum": [ "observed", "stale" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "claims": { "minItems": 1 }, "freshness_input": { "properties": { "derivation_status": { "const": "derived_from_timestamps" }, "source_age_seconds": { "minimum": 0, "type": "integer" } } }, "integrity": { "properties": { "algorithm": { "const": "sha256" }, "digest": { "pattern": "^[a-f0-9]{64}$", "type": "string" }, "scope": { "const": "normalized_claims" } } }, "observed_at": { "format": "date-time", "type": "string" }, "provenance": { "properties": { "provider_observation_reference": { "minLength": 1, "type": "string" } } } } } }, { "if": { "properties": { "source_status": { "enum": [ "unavailable", "rejected", "unknown" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "claims": { "maxItems": 0 }, "freshness_input": { "properties": { "derivation_status": { "const": "not_available" }, "source_age_seconds": { "type": "null" } } }, "integrity": { "properties": { "algorithm": { "const": "none" }, "digest": { "type": "null" }, "scope": { "const": "no_content" } } }, "verification_status": { "enum": [ "unverified", "verification_failed", "not_applicable" ] } } } }, { "if": { "properties": { "source_status": { "enum": [ "unavailable", "unknown" ] } }, "required": [ "source_status" ] }, "then": { "properties": { "observed_at": { "type": "null" }, "provenance": { "properties": { "provider_observation_reference": { "type": "null" } } } } } }, { "if": { "properties": { "verification_status": { "const": "verified" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "enum": [ "fixture_contract", "source_reference_check" ] } } } } } }, { "if": { "properties": { "verification_status": { "const": "unverified" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "not_verified" } } } } } }, { "if": { "properties": { "verification_status": { "const": "verification_failed" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "verification_failed" } } } } } }, { "if": { "properties": { "verification_status": { "const": "not_applicable" } }, "required": [ "verification_status" ] }, "then": { "properties": { "provenance": { "properties": { "verification_basis": { "const": "not_applicable" } } } } } }, { "if": { "properties": { "source_status": { "enum": [ "observed", 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"received_at": { "format": "date-time", "type": "string" }, "schema_version": { "const": "0.1.0" }, "source_id": { "enum": [ "coinbase_exchange_ticker", "kraken_post_trade" ], "type": "string" }, "source_status": { "enum": [ "observed", "unavailable", "stale", "rejected", "unknown" ] }, "subject": { "$ref": "#/properties/input/properties/body/$defs/subject" }, "verification_status": { "enum": [ "verified", "unverified", "verification_failed", "not_applicable" ] } }, "required": [ "schema_version", "observation_id", "source_id", "subject", "observed_at", "received_at", "source_status", "verification_status", "freshness_input", "integrity", "claims", "provenance", "limitations", "authority_effect" ], "title": "Retail Source Observation v0.1", "type": "object" }, "subject": { "additionalProperties": false, "properties": { "label": { "maxLength": 200, "minLength": 1, "type": "string" }, "subject_id": { "maxLength": 200, "minLength": 1, "type": "string" }, "subject_type": { "pattern": 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"manifest_name": "nova-retail-controlled-proof.onrender.com", "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": null } }