← The evidence ledger
Evidence row 116700
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://mart402.com/v1/jp-bonus-net
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7b66383d96c795a5b54542c4b18cd2be8a03033db7bd0eb41b8f0be2d6384672
- Leaf
- 0xa6aad6e631198d0659178958f155fa1ce37eb1a87db3f0b4000db0a5a74c9613
What was observed
{
"endpoints": [
[
"x402",
"https://mart402.com/v1/jp-bonus-net"
]
],
"name": "Mart402",
"owner_address": "0xe3244a21d0d68bfa78b7cad8c3b8777adfbb3188",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xE3244a21D0d68bFa78b7CAd8C3b8777aDFbB3188",
"scheme": "exact"
}
],
"description": "Japan bonus net pay: social insurance premiums and withholding tax from the official bonus rate table (needs previous-month salary). Deterministic, cited sources. $0.01/call.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"bonus_yen": 800000,
"prefecture": "tokyo",
"previous_month_after_si_yen": 300000
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"description": "JSON: bonus net pay, premiums, withholding rate + tax, summary, sources",
"example": {
"as_of": "2026-10-16",
"assumptions": [],
"billable": true,
"breakdown": [
{
"_carried_forward": [],
"child_care_support_yen": 920,
"employment_insurance_yen": 4000,
"health_base_yen": 800000,
"health_yen": 39400,
"long_term_care_yen": 0,
"pension_base_yen": 800000,
"pension_yen": 73200,
"standard_bonus_yen": 800000,
"total_yen": 117520
}
],
"carried_forward": [],
"disclaimer": "仮定条件に基づく概算試算。税務相談・手続代行・法律相談ではない。申告・届出への使用不可。確定額は官公署または税理士・社会保険労務士等に確認のこと。",
"not_covered": [
"labor insurance の業種別特例(建設・農林以外)",
"健康保険組合(協会けんぽ以外)",
"厚生年金基金・企業年金",
"国民健康保険・国民年金",
"産休育休免除・随時改定(月変)・定時決定の細目"
],
"note": "SAMPLE RESPONSE generated by the exact deterministic engine that serves production (jp-statutory has no LLM: same input always produces this byte-identical result, carrying the same rules_version and cited primary sources). Served free at /samples/{product} so you can verify the response shape, the rules_version field and the source citations before paying. No payment was taken. The sample_input shown is the catalog example input that produced this output.",
"ok": true,
"result": {
"_carried_forward": [],
"bonus_yen": 800000,
"child_care_support_yen": 920,
"employment_insurance_yen": 4000,
"health_base_yen": 800000,
"health_yen": 39400,
"income_tax_unavailable": null,
"income_tax_yen": 41808,
"long_term_care_yen": 0,
"net_yen": 640672,
"pension_base_yen": 800000,
"pension_yen": 73200,
"social_insurance_yen": 117520,
"standard_bonus_yen": 800000,
"taxable_base_yen": 682480,
"total_yen": 117520,
"withholding_rate_percent": 6.126
},
"rules_version": "2026.10.16",
"sample": true,
"sample_input": {
"bonus_yen": 800000,
"prefecture": "tokyo",
"previous_month_after_si_yen": 300000
},
"sources": [
"https://jsite.mhlw.go.jp/yamanashi-roudoukyoku/koyouhoken_R8.html",
"https://www.kyoukaikenpo.or.jp/about/business/insurance_rate/rate_prefectures/r08/index.html",
"https://www.kyoukaikenpo.or.jp/assets/R8_13tokyo.pdf",
"https://www.nenkin.go.jp/service/kounen/hokenryo/ryogaku/ryogakuhyo/20200825.files/R08ryougaku.pdf",
"https://www.nta.go.jp/publication/pamph/gensen/zeigakuhyo2026/data/15-16.pdf"
],
"summary": "賞与800,000円 -> 手取り640,672円(社会保険117,520円・源泉所得税41,808円/率6.126%)",
"tool": "jp-bonus-net",
"unverified_rules": []
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"bonus_yen": {
"type": "number"
},
"prefecture": {
"type": "string"
},
"previous_month_after_si_yen": {
"type": "number"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"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"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "jws",
"signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6bWFydDQwMi5jb20ja2V5LTEifQ.eyJhbW91bnQiOiIxMDAwMCIsImFzc2V0IjoiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwicGF5VG8iOiIweEUzMjQ0YTIxRDBkNjhiRmE3OGI3Q0FkOEMzYjg3NzdhREZiQjMxODgiLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vbWFydDQwMi5jb20vdjEvanAtYm9udXMtbmV0Iiwic2NoZW1lIjoiZXhhY3QiLCJ2YWxpZFVudGlsIjoxNzkyNDI3Nzg5LCJ2ZXJzaW9uIjoxfQ.NyjMjUOsm7H8OXjwEp0ebJvehGvy9RP7W46ys7TEp9Gv3gQ9cSO7qHnjATr0KQl82u00vGLQxLg49JH1gLmjBQ"
}
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"offers": {
"items": {
"properties": {
"acceptIndex": {
"type": "integer"
},
"format": {
"const": "jws",
"type": "string"
},
"signature": {
"description": "JWS compact serialization containing the offer payload",
"type": "string"
}
},
"required": [
"format",
"signature"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"offers"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-19T16:31:29.823Z",
"quality": {
"l30DaysTotalCalls": 9,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-19T16:31:29.429Z"
},
"resource": "https://mart402.com/v1/jp-bonus-net",
"serviceName": "Mart402",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Japan bonus net pay: social insurance premiums and withholding tax from the official bonus rate table (needs previous-month salary). Deterministic, cited sources. $0.01/call."
}What the leaf hashes
{"body":"7b66383d96c795a5b54542c4b18cd2be8a03033db7bd0eb41b8f0be2d6384672","id":116700,"kind":"listing","method":"baseline/1","observed_us":1793025610180519,"prev":null,"subject":"x402_bazaar:https://mart402.com/v1/jp-bonus-net","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).
- 0xa6aa5dccca5a1d09c9bc6edb92dc8c32651cba78e37055fddb5f81b131e9fb06
- 0x6f458e736167f41249b93ece599241a33db907724f0d7dd903797b3be505a2e3
- 0x7032da581c503752e27a39b3c7ba3ccbf4082d17a7c2160e25fa470a8cd2149c
- 0x4a8ea743f47fa9b17164aff5916ce0e41ec17c2db4e3527525570f5f40bfcc5d
- 0x33b7b5b40375310311071c013b535701b92ce2d28c526cce7f254cf2ca4920a7
- 0xe409cc765e63994d7bffa5f0fafc4aeab32b5b9860831ac7e2c29abf58db17af
- 0xdbe98be816ad6914660f4ec35bd17151b9deecbf803f8ecef02193f5bec75c4b
- 0x27c8b5fa5b5fb6753775709daf8bac19c9224f74e32e3fee48eaea6f5a4d9737
- 0xe6ee0f234ffe56205700b1e8dd7802c20485340595800c1900625aea4c3ff77f
- 0x8898ab8e9245665c91957f93ced1d4675156754992f0651eb80aa5869ec8fd1b
- 0xf9b4ada16aca6f9b63c09b94519008e1b94357a9d352c245023758b56b82d0b1
- 0x1e464fcb484a1e782f9fe44be5118a9de934eb533c96ba10fc7d20e3a3e4711c
- 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
- 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
- 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
- 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae