← The evidence ledger
Evidence row 2201418
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://nohands-coinbase-bazaar.bytoken2023.workers.dev/x402/v1/value/btc-usd
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c2436f93a22215195e63a76e6a67f39e5762c91c6431ea143eb60f1ab0a77385
- Leaf
- 0xa5e4b93736b7616c04b3757c9dd05c4f13c8e242d6b078c31746d00fc1dbafd6
What was observed
{
"endpoints": [
[
"x402",
"https://nohands-coinbase-bazaar.bytoken2023.workers.dev/x402/v1/value/btc-usd"
]
],
"name": "NO HANDS AI",
"owner_address": "0x94f751f04b98507d31b500b7ed50be68a1514873",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x94F751f04b98507D31b500b7Ed50bE68A1514873",
"scheme": "exact"
}
],
"description": "Return a source-backed live BTC to USD quote for autonomous-agent budget checks.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"amount": "1"
},
"type": "http"
},
"output": {
"example": {
"amount": "1",
"asset": "BTC",
"converted_value": "1.00",
"fallback_reason": null,
"fallback_used": false,
"freshness_seconds": 0,
"market_status": "fresh",
"product": "nomos-value-btc-usd",
"provider": "Kraken",
"provider_role": "primary",
"quote_currency": "USD",
"quote_type": "live",
"response_generated_at": "2026-07-24T00:00:00.000Z",
"result_id": "val_20260724000000_bgp",
"schema_version": "2.0",
"source": "live_market_quote",
"source_observed_at": "2026-07-24T00:00:00.000Z",
"sources": [
{
"fetched_at": "2026-07-24T00:00:00.000Z",
"freshness_seconds": 0,
"leg": "crypto_usd",
"market": "BTC/USD",
"observation_type": "recent_trade",
"observed_at": "2026-07-24T00:00:00.000Z",
"pair": "XXBTZUSD",
"provider": "Kraken",
"provider_role": "primary",
"timestamp_origin": "exchange_trade_time",
"value": "1.00000000",
"venue": "Kraken Spot"
}
],
"unit_price": "1.000000"
},
"type": "json"
}
},
"routeTemplate": "/x402/v1/value/btc-usd",
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"amount": {
"description": "Optional positive decimal BTC amount with at most 12 fractional digits. Defaults to 1.",
"example": "1",
"maxLength": 64,
"pattern": "^(?:[0-9]*[1-9][0-9]*(?:\\.[0-9]{1,12})?|0+\\.(?:[1-9][0-9]{0,11}|0{1}[1-9][0-9]{0,10}|0{2}[1-9][0-9]{0,9}|0{3}[1-9][0-9]{0,8}|0{4}[1-9][0-9]{0,7}|0{5}[1-9][0-9]{0,6}|0{6}[1-9][0-9]{0,5}|0{7}[1-9][0-9]{0,4}|0{8}[1-9][0-9]{0,3}|0{9}[1-9][0-9]{0,2}|0{10}[1-9][0-9]{0,1}|0{11}[1-9]))$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"amount": {
"pattern": "^(?:[0-9]*[1-9][0-9]*(?:\\.[0-9]{1,12})?|0+\\.(?:[1-9][0-9]{0,11}|0{1}[1-9][0-9]{0,10}|0{2}[1-9][0-9]{0,9}|0{3}[1-9][0-9]{0,8}|0{4}[1-9][0-9]{0,7}|0{5}[1-9][0-9]{0,6}|0{6}[1-9][0-9]{0,5}|0{7}[1-9][0-9]{0,4}|0{8}[1-9][0-9]{0,3}|0{9}[1-9][0-9]{0,2}|0{10}[1-9][0-9]{0,1}|0{11}[1-9]))$",
"type": "string"
},
"asset": {
"const": "BTC",
"type": "string"
},
"converted_value": {
"pattern": "^[0-9]+(?:\\.[0-9]+)?$",
"type": "string"
},
"fallback_reason": {
"enum": [
null,
"primary_timeout",
"primary_http_error",
"primary_network_error",
"primary_invalid_payload",
"primary_stale"
],
"type": [
"string",
"null"
]
},
"fallback_used": {
"type": "boolean"
},
"freshness_seconds": {
"minimum": 0,
"type": "integer"
},
"market_status": {
"const": "fresh",
"type": "string"
},
"product": {
"const": "nomos-value-btc-usd",
"type": "string"
},
"provider": {
"enum": [
"Kraken",
"Bitfinex"
],
"type": "string"
},
"provider_role": {
"enum": [
"primary",
"fallback"
],
"type": "string"
},
"quote_currency": {
"const": "USD",
"type": "string"
},
"quote_type": {
"const": "live",
"type": "string"
},
"response_generated_at": {
"format": "date-time",
"type": "string"
},
"result_id": {
"pattern": "^val_[0-9]{14}_[0-9a-z]+$",
"type": "string"
},
"schema_version": {
"const": "2.0",
"type": "string"
},
"source": {
"const": "live_market_quote",
"type": "string"
},
"source_observed_at": {
"format": "date-time",
"type": "string"
},
"sources": {
"items": {
"additionalProperties": false,
"properties": {
"fetched_at": {
"format": "date-time",
"type": "string"
},
"freshness_seconds": {
"maximum": 180,
"minimum": 0,
"type": "integer"
},
"leg": {
"const": "crypto_usd",
"type": "string"
},
"market": {
"type": "string"
},
"observation_type": {
"enum": [
"recent_trade",
"ticker_snapshot"
],
"type": "string"
},
"observed_at": {
"format": "date-time",
"type": "string"
},
"pair": {
"type": "string"
},
"provider": {
"enum": [
"Kraken",
"Bitfinex"
],
"type": "string"
},
"provider_role": {
"enum": [
"primary",
"fallback"
],
"type": "string"
},
"timestamp_origin": {
"enum": [
"exchange_trade_time",
"fetch_completion_time"
],
"type": "string"
},
"value": {
"pattern": "^[0-9]+(?:\\.[0-9]+)?$",
"type": "string"
},
"venue": {
"type": "string"
}
},
"required": [
"leg",
"provider",
"provider_role",
"venue",
"market",
"pair",
"value",
"observed_at",
"observation_type",
"timestamp_origin",
"fetched_at",
"freshness_seconds"
],
"type": "object"
},
"maxItems": 1,
"minItems": 1,
"type": "array"
},
"unit_price": {
"pattern": "^[0-9]+(?:\\.[0-9]+)?$",
"type": "string"
}
},
"required": [
"product",
"schema_version",
"asset",
"amount",
"quote_currency",
"quote_type",
"unit_price",
"converted_value",
"source",
"provider",
"provider_role",
"fallback_used",
"fallback_reason",
"source_observed_at",
"response_generated_at",
"freshness_seconds",
"market_status",
"sources",
"result_id"
],
"type": "object",
"x-schema-authority": "SHARED_FX_LIVE_QUOTE_CONTRACT",
"x-schema-family": "FX_LIVE_QUOTE_V2"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T02:44:16.35Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-02T02:44:16.258Z"
},
"resource": "https://nohands-coinbase-bazaar.bytoken2023.workers.dev/x402/v1/value/btc-usd",
"serviceName": "NO HANDS AI",
"tags": [
"x402",
"no-hands-ai",
"market-data"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Return a source-backed live BTC to USD quote for autonomous-agent budget checks."
}What the leaf hashes
{"body":"c2436f93a22215195e63a76e6a67f39e5762c91c6431ea143eb60f1ab0a77385","id":2201418,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646804878950,"prev":null,"subject":"x402_bazaar:https://nohands-coinbase-bazaar.bytoken2023.workers.dev/x402/v1/value/btc-usd","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xa5e4575ad7c173d3decef3f461f674e5665b18a469103725bbf025de17c05b20
- 0x40527f39346c792f4cbf3f00c37fb36c73e3a3ab9d480e0a393a7ab526ab93e4
- 0x5b90c8bde9ecb5412872dd280510df6491409ac264eb9717a0eea9f6d0d87903
- 0xf319da887c061539895d0b396451c02caafa7c583fc03a5e2c25935f973bc189
- 0xc0255775dcbbe40988bfd54f42744a46deb203fe3ebd60f955b61df29efc0c87
- 0x4be974ac0ee0b284108860e1a34c330f9f9b8b35ec16622fd09ae6a652383c8a
- 0xf4a901d43ad0463cd38ca8feeb4951e50a01313076adcbb6951c506ecd487a2e
- 0x30e9c374b94fa8f2cb77047d34ac6fa1ce9b4e027c01e51db65a5fb850067248
- 0x99338e8c724a4ec61bc166a1a1d6d0ad48a835f885ec8b89d7d0d6a1cc7b86f2
- 0xa92c709762ce23df79c34c3f6628d5a3afe07cf9733cd18b14a3224e047ae876
- 0xa04075991c97d7aaf70f4b871aaa795b50aa88f0aad78b9cf55ce19bd543b03a
- 0x4c4f4cb682e94e3751eaa1fa136fc04582c4d9d8eb377f4fef8bb9a5f3e31983
- 0xec9b01ce49e2dd688fa78781733c888976342aaf0672176098d6561858941ddd
- 0x7a6e52c5cebe3ec69d18cc200885d32108ba1be1b19f2da2ead8becbf3db3cb1
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af