← The evidence ledger
Evidence row 120551
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/registry/maven/junit/:groupId
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5a4dac9c53da9ac2ded920955ee79be30cfb8c9678ab0801e2ab8c943bdb914a
- Leaf
- 0xb56581cfb44e42906e54feee2ed04707cefcd66fefe85088cff75880a1edb841
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/registry/maven/junit/:groupId"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:registry-maven",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:registry-maven",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:registry-maven",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:registry-maven",
"reference": "8JyPWLVZyxpmvCnNDGXsDCbnq6cjFePRNit72jCQrpru",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpyZWdpc3RyeS1tYXZlbiIsInJlZmVyZW5jZSI6IjhKeVBXTFZaeXhwbXZDbk5ER1hzRENibnE2Y2pGZVBSTml0NzJqQ1FycHJ1IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1Mjg0MTQ0Mzd9.i-yyShQOXnyiYZ11fk4p987LlN8WdbI1uqj1xBYqlfQ"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:registry-maven",
"reference": "G5RRmHVcu8NzGwTacpgcxyn1W7MAYHWEorxpAVPzVB2P",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpyZWdpc3RyeS1tYXZlbiIsInJlZmVyZW5jZSI6Ikc1UlJtSFZjdThOekd3VGFjcGdjeHluMVc3TUFZSFdFb3J4cEFWUHpWQjJQIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1Mjg0MTQ0Mzd9.JF1HhOXhPJ8ycu9_JJQPHE8FJf0LIxjX-WKlLFqn8Gs"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91431",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:registry-maven",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "94259",
"reference": "5p7msRsMM8eYm99GsXzHgacZ5wS596ha2ZadwoGWL3MR",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpyZWdpc3RyeS1tYXZlbiIsInJlZmVyZW5jZSI6IjVwN21zUnNNTThlWW05OUdzWHpIZ2FjWjV3UzU5NmhhMlphZHdvR1dMM01SIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxNDMxLCJleHAiOjE3OTI1Mjg0MTQ0Mzd9.j_eslqv-KlGti2f7yjpAb7i2domVKRYFhJVPJ93JVA0",
"solUsdPrice": 106.09
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Maven Central artifact info - latest release version, recent versions, licenses, description and ready-to-paste dependency snippet",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"pathParams": {
"groupId": "junit"
},
"type": "http"
},
"output": {
"example": {
"artifact_id": "junit",
"dependency_snippet": "<dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13.2</version></dependency>",
"description": "JUnit is a unit testing framework for Java, created by Erich Gamma and Kent Beck.",
"ecosystem": "maven",
"group_id": "junit",
"last_updated": "2021-02-13T16:44:33Z",
"licenses": [
"Eclipse Public License 1.0"
],
"name": "JUnit",
"newest_listed_version": "4.13.2",
"recent_versions": [
"4.13.2",
"4.13.1",
"4.13",
"4.13-rc-2",
"4.13-rc-1",
"4.13-beta-3",
"4.13-beta-2",
"4.13-beta-1"
],
"version": "4.13.2",
"versions_count": 32
},
"type": "json"
}
},
"routeTemplate": "/api/registry/maven/junit/:groupId",
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"properties": {
"groupId": {
"description": "Maven group id in the path",
"type": "string"
}
},
"required": [
"groupId"
],
"type": "object"
},
"queryParams": {
"properties": {
"artifactId": {
"description": "Maven artifact id in the path",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"pathParams"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"artifact_id": {
"description": "Artifact id identifier",
"type": "string"
},
"checked_at": {
"description": "Time the check was run (UTC)",
"type": [
"string",
"null"
]
},
"dependency_snippet": {
"description": "Dependency snippet",
"type": "string"
},
"description": {
"description": "Short description",
"type": [
"string",
"null"
]
},
"ecosystem": {
"description": "Package ecosystem the record belongs to",
"type": [
"string",
"null"
]
},
"group_id": {
"description": "Group id identifier",
"type": "string"
},
"last_updated": {
"description": "Time the data was last updated by the source",
"type": [
"string",
"null"
]
},
"licenses": {
"description": "License identifiers",
"items": {
"type": "string"
},
"type": "array"
},
"name": {
"description": "Name",
"type": [
"string",
"null"
]
},
"newest_listed_version": {
"description": "Newest listed version",
"type": [
"string",
"null"
]
},
"recent_versions": {
"description": "Most recent versions, newest first",
"type": [
"array",
"null"
]
},
"version": {
"description": "Version identifier",
"type": "string"
},
"versions_count": {
"description": "Number of published versions",
"type": "number"
}
},
"required": [
"group_id",
"artifact_id",
"version"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-20T20:31:34.485Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-20T20:31:34.153Z"
},
"resource": "https://saylorinnovations.com/api/registry/maven/junit/:groupId",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"maven central",
"java library",
"package info",
"pom",
"registry"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Maven Central artifact info - latest release version, recent versions, licenses, description and ready-to-paste dependency snippet"
}What the leaf hashes
{"body":"5a4dac9c53da9ac2ded920955ee79be30cfb8c9678ab0801e2ab8c943bdb914a","id":120551,"kind":"listing","method":"baseline/1","observed_us":1793025618221538,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/registry/maven/junit/:groupId","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).
- 0xb5652a376fb20374027f531d5fcf4d584b212113f7045fc7fb5878db9182fa7d
- 0xe00a33d1a16cc2feca08e1e6f09e3588faef4481729292079bc66aebaf7bfbaa
- 0x7352ff5cc6a8d7e66a8fbf9b8f83217acee77e85402456c621434acaaf12601d
- 0xd7a565b51aa1db9df502e0209950f827319c451ea52d09710ebfa90420e79afb
- 0xeff45486e4c024289042f53780fd53d8943538f6259186ad9ac400514ea1e358
- 0x8c1f30f8896a523c60d0b6b810e538ac7045825bab858abc15c50791a3484859
- 0xa8d7baed445e44745b9c498c750e6071c43b53bc201e461accd753053d55eb58
- 0x4f70df97b82c43afef4dd705029249c95dc129b13ba5931b2741df080a73e5b4
- 0x4a395832b96531e5dad890a69b905731226c55bcaecd7094b9976c1e1861cde9
- 0x29d8926a104518c165350885a541887278c9813fe33bc83e56dff05bb21358ce
- 0x0f199646652e20987f8f0e4e8bd21993538b0737cd758d5cbc6ebcaaa02763a3
- 0x7a0f1751de1946feff7d8c8afc737dcc4d35f110809c15aa0fdb8363a9e31b2b
- 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
- 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae