← The evidence ledger
Evidence row 69838
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.vextorium.com/v1/euro-yield-curve
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 60f536fe32f008cbd265ae02690e1114e1de3b268b788a5ab20798542916e4cc
- Leaf
- 0xe47cb65d5c7cb81cd72c2749d9d14ccd5977d94009448f48c8361c59e7623f5b
What was observed
{
"endpoints": [
[
"x402",
"https://api.vextorium.com/v1/euro-yield-curve"
]
],
"name": "Euro area government yield curve",
"owner_address": "0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf",
"raw": {
"accepts": [
{
"amount": "4000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"assets": [
{
"address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
"authorizationVersions": [
"1",
"2"
],
"decimals": 6,
"symbol": "USDC"
}
],
"minValiditySeconds": 604800,
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:10",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "4000",
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"assets": [
{
"address": "0x3600000000000000000000000000000000000000",
"authorizationVersions": [
"1",
"2"
],
"decimals": 6,
"symbol": "USDC"
}
],
"minValiditySeconds": 604800,
"name": "GatewayWalletBatched",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"version": "1"
},
"maxTimeoutSeconds": 604900,
"network": "eip155:5042",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"scheme": "exact"
},
{
"amount": "0.004",
"asset": "524C555344000000000000000000000000000000",
"extra": {
"areFeesSponsored": false,
"invoiceId": "6AACC04CEB2C45EFA486E979439A8F7B",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"scheme": "exact"
},
{
"amount": "3080",
"asset": "XRP",
"extra": {
"areFeesSponsored": false,
"invoiceId": "B7A6A875E0254BEFA6DD798CA405D075",
"sourceTag": 804681468
},
"maxTimeoutSeconds": 300,
"network": "xrpl:0",
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"scheme": "exact"
}
],
"description": "Euro area AAA government bond yield curve (zero-coupon, 3 months to 30 years) estimated by the ECB, with change in basis points versus N days ago and the 10y-2y slope.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"compare_days": 30
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"compared_with": "2026-09-01",
"curve": [
{
"change_bp": 8.6,
"rate_pct": 2.5074,
"term": "3M"
},
{
"change_bp": 13.6,
"rate_pct": 2.6913,
"term": "6M"
}
],
"date": "2026-10-01",
"slope_10y_2y_bp": 48.6,
"source": "European Central Bank, euro area yield curve (AAA bonds)"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"compare_days": {
"description": "1-365, default 30",
"type": "integer"
}
},
"required": []
},
"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": {
"properties": {
"compared_with": {
"type": [
"string",
"null"
]
},
"curve": {
"items": {
"properties": {
"change_bp": {
"type": [
"null",
"number"
]
},
"rate_pct": {
"type": [
"null",
"number"
]
},
"term": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"type": [
"array",
"null"
]
},
"date": {
"type": [
"string",
"null"
]
},
"slope_10y_2y_bp": {
"type": [
"number",
"null"
]
},
"source": {
"type": [
"string",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-20T18:22:57.964Z",
"quality": {
"l30DaysTotalCalls": 6,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-20T18:22:57.438Z"
},
"resource": "https://api.vextorium.com/v1/euro-yield-curve",
"serviceName": "Euro area government yield curve",
"tags": [
"bonds",
"yield-curve",
"ecb",
"euro",
"rates"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Euro area AAA government bond yield curve (zero-coupon, 3 months to 30 years) estimated by the ECB, with change in basis points versus N days ago and the 10y-2y slope."
}What the leaf hashes
{"body":"60f536fe32f008cbd265ae02690e1114e1de3b268b788a5ab20798542916e4cc","id":69838,"kind":"listing","method":"baseline/1","observed_us":1793025479029779,"prev":null,"subject":"x402_bazaar:https://api.vextorium.com/v1/euro-yield-curve","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xe47c8c75a269577d5cd5932f7e172673aaf436e44809d8f998665130e4857a6f
- 0x3b6f8abd60af359d5b29bce77a0e536e01c0abfce1af91ba7840ade77afa9b53
- 0xfeb11f3f82a4293003eccf49f504b559408886946b8bb6ed0086a3c5c9d9ed18
- 0x1eb151f0b7cd911878ed6fb390540430fb5fb396a3afde89ef66f244f281c2c6
- 0xe77bc1b88c3d8404bac4121d2023a77403a2e94045d72a3e4a1a532ca39f10c3
- 0x2515e86ca4da46d1e1e191ace71d0cae03f560e3fa985f9ca10599c5d9090995
- 0x7462fa0e672facf91cc83552e9177810c134978c534859c91c5ec6286213d34b
- 0x732fabd717c36e930e47a999d89abfb9944b8a1cef213f47dba5ed76e165967c
- 0xfad341df9f0650e5cda8e3dfaac4ac724c361673dc56b69456c2ae2d27c06c26
- 0x86c56520a247c0dd1499f40b00669d0f980768d7f2c1c990aed4a43e7b31c44a
- 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
- 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
- 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
- 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae