← The evidence ledger
Evidence row 2202145
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://calendar-systems.x402tookit.com/julian-day
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 75a5dea735215233537951406fa81fcdae17dc9749489bf67e0ed07949c487e2
- Leaf
- 0xb628f9fb489ae2610c7fee2a39124ae4ad3655549d1d82cd51194ff072c1a42c
What was observed
{
"endpoints": [
[
"x402",
"https://calendar-systems.x402tookit.com/julian-day"
]
],
"name": "Calendar Systems",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Julian Day, modified JD and Julian Day Number for a date and UTC time (Gregorian or Julian calendar), or JD back to a date.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"date": "1957-10-04",
"time": "19:26:24"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T08:54:33.643Z",
"calendarUsed": "gregorian",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"gregorianDate": "1957-10-04",
"j2000Offset": -15428.69,
"julianCalendarDate": "1957-09-21",
"julianDay": 2436116.31,
"julianDayNumber": 2436116,
"modifiedJulianDay": 36115.81,
"notChecked": [
"UT versus TT: the Julian Day here is on the UT (civil) scale, not Terrestrial Time",
"leap seconds and time zones (the time is taken as UTC)",
"…1 more"
],
"rataDie": 714691,
"reasons": [
"JD counts days from noon UT on 1 January 4713 BCE (Julian calendar); MJD = JD - 2400000.5.",
"Julian Day Number (the whole-day count in effect at noon) of this calendar day is 2436116."
],
"source": "Meeus, Astronomical Algorithms ch. 7; fixed-date arithmetic from Reingold and Dershowitz, computed locally",
"summary": "1957-10-04 19:26:24 UTC (gregorian) is JD 2436116.31, MJD 36115.81, a Friday.",
"verdict": "COMPUTED",
"weekday": "Friday"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"calendar": {
"description": "gregorian (default, proleptic) or julian: how the date is written",
"enum": [
"gregorian",
"julian"
],
"type": "string"
},
"date": {
"description": "YYYY-MM-DD, year -4712 to 9999 (astronomical numbering: year 0 = 1 BCE)",
"type": "string"
},
"jd": {
"description": "A Julian Day to convert to a date instead (0 to 5373484)",
"type": "number"
},
"time": {
"description": "UTC time HH:MM or HH:MM:SS, default 00:00:00",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"calendarUsed": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"gregorianDate": {
"type": [
"null",
"string"
]
},
"j2000Offset": {
"type": [
"null",
"number"
]
},
"julianCalendarDate": {
"type": [
"null",
"string"
]
},
"julianDay": {
"type": [
"null",
"number"
]
},
"julianDayNumber": {
"type": [
"null",
"number"
]
},
"modifiedJulianDay": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"rataDie": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"weekday": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:40:24.296Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-01T22:40:24.126Z"
},
"resource": "https://calendar-systems.x402tookit.com/julian-day",
"serviceName": "Calendar Systems",
"tags": [
"julian-day",
"mjd",
"astronomy",
"dates"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Julian Day, modified JD and Julian Day Number for a date and UTC time (Gregorian or Julian calendar), or JD back to a date."
}What the leaf hashes
{"body":"75a5dea735215233537951406fa81fcdae17dc9749489bf67e0ed07949c487e2","id":2202145,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813486806,"prev":null,"subject":"x402_bazaar:https://calendar-systems.x402tookit.com/julian-day","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).
- 0xb628f714eb0bdcccd9c6468fe0f34e4740e00912c539c36ce0d17b2e4c271b5f
- 0x02d62fd285f3ac23062390eb2043194d115d583a9b549cd8060f2156a9cb7471
- 0x368f233d291f10ec82472104e6861f4b4443a0ddd3de0e04ec3cf77e14e07da7
- 0x938d5bb22dfab9ebc4a6477a5efebcd6951ccc3cb5dda9861090ca3d0b7b465c
- 0x28c3bd9f7bce8539ed15c89df0be934d05a6b59a6d170d314b38ad81611624b0
- 0x54203cf781d4386dc42fb8d893ac1a0aee1ee39ec6f6c284f65a8d4825a94423
- 0xc91c368a1d5b06a7a0879e5e27585285ed56b760a9860866caf6d3b6332a0146
- 0xb1651bdb6210aec40b8d319ae446a326faf00946f981aa1aa2a867dfebc2f00d
- 0xc6ac3a94c33347ab0cdbe010836cd79487966ddb6e6fb9b77fcfdf950be97f6d
- 0x10a6fe2fe9fb5fac8d8417e6be1f8baaade4ff99951fcaaefad29101bd5f96b9
- 0x2555efb378c6b7cb5811b4ecf07798a08091d65ce945f40c90426df04f88ecf4
- 0x5d48d61efa15a1eaabc2b8fe3288726baac176ec765001989034339357eb596c
- 0x030e61e00342e920981555e2e665fa5ec4a741b10a078f282daa829896c87583
- 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
- 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
- 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af