← The evidence ledger
Evidence row 2325
Observed , by baseline/1.
- Kind
- listing
- About
- source_record agentic_market:finance-openverbs-com
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- f911cc00e8137abd9f0fb5e5e11a1d46f141c40ceddedc1404a8f93118750174
- Leaf
- 0xe491e6008d6a3aeb57042d382810662c429074c8ccde0d4108112d7a6bb8ee49
What was observed
{
"endpoints": [
[
"x402",
"https://finance.openverbs.com/v1/future-value"
],
[
"x402",
"https://finance.openverbs.com/v1/interest"
],
[
"x402",
"https://finance.openverbs.com/v1/irr"
],
[
"x402",
"https://finance.openverbs.com/v1/loan"
],
[
"x402",
"https://finance.openverbs.com/v1/npv"
],
[
"x402",
"https://finance.openverbs.com/v1/present-value"
]
],
"name": "finance.openverbs.com",
"owner_address": null,
"raw": {
"caip2_networks": [
"eip155:8453"
],
"category": "",
"description": "",
"domain": "finance.openverbs.com",
"endpoints": [
{
"description": "Future value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the start of each period).",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "payment",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "periods",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "presentValue",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "ratePercent",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
},
"serviceName": "Future value",
"tags": [
"future value calculator",
"annuity future value",
"fv financial formula",
"investment growth projection",
"payments to future value"
],
"url": "https://finance.openverbs.com/v1/future-value"
},
{
"description": "Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "annualRatePercent",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "compoundsPerYear",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "simple",
"group": "body",
"name": "method",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "principal",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "years",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "3",
"l30DaysUniquePayers": "3"
},
"serviceName": "Simple / compound interest",
"tags": [
"compound interest calculator",
"simple interest calculator",
"grow principal",
"interest over time",
"monthly compounding api"
],
"url": "https://finance.openverbs.com/v1/interest"
},
{
"description": "Internal rate of return (per period) of a series of cash flows, solved with a bounded bisection. Requires at least one positive and one negative flow; flows with no sign change or no bracketable root are rejected as a clean 400.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": [],
"group": "body",
"name": "cashflows",
"required": false,
"type": "array"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
},
"serviceName": "Internal rate of return",
"tags": [
"internal rate of return",
"irr calculator",
"cashflow return rate",
"investment irr api",
"solve discount rate"
],
"url": "https://finance.openverbs.com/v1/irr"
},
{
"description": "Compute the level monthly payment, total paid and total interest of a fully-amortizing loan. Handles a 0% rate. Set schedule=true to also return the full month-by-month amortization table.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "annualRatePercent",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "principal",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": false,
"group": "body",
"name": "schedule",
"required": false,
"type": "boolean"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "termMonths",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
},
"serviceName": "Loan amortization",
"tags": [
"loan amortization",
"mortgage payment calculator",
"monthly loan payment",
"amortization schedule",
"total loan interest"
],
"url": "https://finance.openverbs.com/v1/loan"
},
{
"description": "Net present value of a series of cash flows discounted at a per-period rate. cashflows[0] is the time-0 flow (typically the initial outlay, negative).",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": [],
"group": "body",
"name": "cashflows",
"required": false,
"type": "array"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "ratePercent",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
},
"serviceName": "Net present value",
"tags": [
"net present value",
"npv calculator",
"discount cash flows",
"investment npv api",
"cashflow valuation"
],
"url": "https://finance.openverbs.com/v1/npv"
},
{
"description": "Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "futureValue",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "payment",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "periods",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 1,
"group": "body",
"name": "ratePercent",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.004",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": {
"l30DaysTotalCalls": "3",
"l30DaysUniquePayers": "3"
},
"serviceName": "Present value",
"tags": [
"present value calculator",
"annuity present value",
"pv financial formula",
"discount future cashflow",
"payments to present value"
],
"url": "https://finance.openverbs.com/v1/present-value"
}
],
"enriched": false,
"iconUrl": "",
"id": "finance-openverbs-com",
"integrationType": "",
"isNew": false,
"name": "finance.openverbs.com",
"networks": [
"Base"
],
"priceSummary": {
"avgCostBasis": "exact",
"avgCostPerTransaction": "0.004",
"currency": "USDC",
"maxAmount": "0.004",
"minAmount": "0.004"
},
"provider": "finance.openverbs.com",
"providerUrl": "",
"serviceName": "",
"tags": [
"future value calculator",
"annuity future value",
"fv financial formula",
"investment growth projection",
"payments to future value",
"compound interest calculator",
"simple interest calculator",
"grow principal",
"interest over time",
"monthly compounding api",
"internal rate of return",
"irr calculator",
"cashflow return rate",
"investment irr api",
"solve discount rate",
"loan amortization",
"mortgage payment calculator",
"monthly loan payment",
"amortization schedule",
"total loan interest",
"net present value",
"npv calculator",
"discount cash flows",
"investment npv api",
"cashflow valuation",
"present value calculator",
"annuity present value",
"pv financial formula",
"discount future cashflow",
"payments to present value"
]
},
"source": "agentic_market",
"summary": ""
}What the leaf hashes
{"body":"f911cc00e8137abd9f0fb5e5e11a1d46f141c40ceddedc1404a8f93118750174","id":2325,"kind":"listing","method":"baseline/1","observed_us":1793025266198476,"prev":null,"subject":"agentic_market:finance-openverbs-com","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).
- 0xe491f5d953d29a19623e11d0bada0cd98bbaf35cfb4b0f9fb522e37662e2b903
- 0xac1703026ba711cd522290e3e796d222ac7c3c9185d3a9b426d243422627e450
- 0x06fd6f1f609214f09a3b0781f34cd9369729806274df1ba138f19f83ed7ede87
- 0x5a52ac1a536d3fc205481dcdf6a4bd721c017ec42c234a4933d7384205f1546e
- 0x88fabc0c4ea202a5aa8a887bb12c4a3bab92ed8b9ba2a5059567806f3240fd91
- 0x1e61c95967f5b8ff3fa359f029510eda5bbe4f2f4885f632489cd9a32cb2ae4f
- 0x5943933096b8b1be39f9b30efea25b3f2477311120b0455660ae72be748544d7
- 0x6ddfb1d476b94ebefbfc37646f517f75f17b1a683a0ec02747d0d07c7d00718a
- 0xfad341df9f0650e5cda8e3dfaac4ac724c361673dc56b69456c2ae2d27c06c26
- 0x86c56520a247c0dd1499f40b00669d0f980768d7f2c1c990aed4a43e7b31c44a
- 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
- 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
- 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
- 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
- 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae