← The evidence ledger
Evidence row 2202030
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://crypto-math.x402tookit.com/ec-params
- Recorded
- Previous row
- #220419
- Body SHA-256
- 5cdc2408b3a8fa81b5cd3b86f7bb2b4e765b87f7e1d46b41a4ef45171d07aeac
- Leaf
- 0x12a8e0ff9aa4874c20f526a653323b411445c56d018a3bd1ff390145640676e7
What was observed
{
"endpoints": [
[
"x402",
"https://crypto-math.x402tookit.com/ec-params"
]
],
"name": "Crypto Math",
"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": "secp256k1, P-256 and P-384 public parameters (p, n, G) from SEC 2, with an on-curve check of a public point.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"curve": "secp256k1",
"publicKey": "0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T23:46:27.980Z",
"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.",
"notChecked": [
"that the point belongs to anyone or was generated from a real private key",
"the point at infinity encoding",
"…2 more"
],
"params": {
"a": {
"hex": "0000000000000000000000000000000000000000000000000000000000000000"
},
"aliases": [
"secp256k1",
"K-256"
],
"b": {
"hex": "0000000000000000000000000000000000000000000000000000000000000007"
},
"cofactor": 1,
"commonUse": "Bitcoin, Ethereum and many other chains (ECDSA and Schnorr)",
"equation": "y^2 = x^3 + 7 (mod p)",
"fieldBits": 256,
"generator": {
"x": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
"y": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
},
"name": "secp256k1",
"oid": "1.3.132.0.10",
"order": {
"decimal": "115792089237316195423570985008687907852837564279074904382605163141518161494337",
"hex": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141"
},
"p": {
"decimal": "115792089237316195423570985008687907853269984665640564039457584007908834671663",
"hex": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f"
},
"securityStrengthBits": 128
},
"point": {
"compressedHex": "0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
"isGenerator": true,
"uncompressedHex": "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",
"valid": true,
"x": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
"y": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",
"yParity": "even"
},
"reasons": [
"Parameters are the published SEC 2 v2 / FIPS 186-4 values; cofactor is 1, so any on-curve point other than infinity has order n."
],
"source": "SEC 2 v2 (Certicom) and NIST FIPS 186-4 curve parameters, point check computed locally",
"summary": "The point is on secp256k1.",
"verdict": "ON_CURVE"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"curve": {
"description": "secp256k1, secp256r1 (P-256) or secp384r1 (P-384)",
"type": "string"
},
"publicKey": {
"description": "PUBLIC key hex: 04||X||Y uncompressed or 02/03||X compressed; not a private scalar",
"type": "string"
},
"x": {
"description": "Point x coordinate, decimal or 0x hex (give with y)",
"type": "string"
},
"y": {
"description": "Point y coordinate, decimal or 0x hex (give with x)",
"type": "string"
}
},
"required": [
"curve"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"params": {
"properties": {
"a": {
"properties": {
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"aliases": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"b": {
"properties": {
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"cofactor": {
"type": [
"null",
"number"
]
},
"commonUse": {
"type": [
"null",
"string"
]
},
"equation": {
"type": [
"null",
"string"
]
},
"fieldBits": {
"type": [
"null",
"number"
]
},
"generator": {
"properties": {
"x": {
"type": [
"null",
"string"
]
},
"y": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"name": {
"type": [
"null",
"string"
]
},
"oid": {
"type": [
"null",
"string"
]
},
"order": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"p": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"securityStrengthBits": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"point": {
"properties": {
"compressedHex": {
"type": [
"null",
"string"
]
},
"isGenerator": {
"type": [
"boolean",
"null"
]
},
"uncompressedHex": {
"type": [
"null",
"string"
]
},
"valid": {
"type": [
"boolean",
"null"
]
},
"x": {
"type": [
"null",
"string"
]
},
"y": {
"type": [
"null",
"string"
]
},
"yParity": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T22:46:07.14Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-11-01T22:46:06.881Z"
},
"resource": "https://crypto-math.x402tookit.com/ec-params",
"serviceName": "Crypto Math",
"tags": [
"secp256k1",
"ecdsa",
"elliptic-curve",
"sec2"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "secp256k1, P-256 and P-384 public parameters (p, n, G) from SEC 2, with an on-curve check of a public point."
}What the leaf hashes
{"body":"5cdc2408b3a8fa81b5cd3b86f7bb2b4e765b87f7e1d46b41a4ef45171d07aeac","id":2202030,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646811417112,"prev":220419,"subject":"x402_bazaar:https://crypto-math.x402tookit.com/ec-params","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).
- 0x12a8e5243695436bf183f03ec5715efec847e493155943384a84ebfa62582349
- 0x11be0865fc069df84f0216ec1ffccd76e34a5dc8629a83912b32162814faab51
- 0xa2e51e38aec28d7ed23356f53c5f3e30fa8f1648581cc619b020c5c014c18ee1
- 0x4c7706e512bc5911f40c949ef68816965fd6cb847187a9b39a831bc939ef7850
- 0x42277f50df7e237f895ef5a4d63726f49b6c6f8f47149649d08ef7b9fa8b4d47
- 0x060bae0649ea3256c7071f270f37bae633af57edf7bb207c62044f1f837334ac
- 0x38008cbf4a1cd31d6fd53791b3d66f80276b81a0c8df7c876ebefbc159a284bd
- 0x6bc42b2fbc8e90544c2d504b408ce66eef4a0eeeed6376cca140480c263e316a
- 0x205d0ee237097d938d0e796bda27e2edd719e990efd64f38be7e65e3d8318197
- 0xa6093abf2ee2c0ff8bf1ce3b8af3686f54c272d2acd06653c1994bd1886a3bab
- 0xa5811a0b89dd1221b6a020c2b4a6a7361cdbabfb7df683848ebfb0ea27be86af
- 0x74e0d631b606ef854cf5ee37e8a4af7452fcdd0b8dce7d3646c83926c6ab1fd5
- 0x51686476d83f4be87192f4eeb7ac78473591bfaf5a92a1822648fcb019a95a83
- 0x9914dfe331775bd1714304f757d2b6b43ba45167245d645ce50f54a3d8617c4d
- 0xd82979c12a2aae44121bb6058b3364b3a3cbc9be411e35ab0208df5ed56f65d4
- 0x7cb861d18f06406535ade133f716d897f27d257cf0121f99d94c78c713c4b54d
- 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af