← The evidence ledger
Evidence row 119824
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/explorer/block
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- bce9cb29169a8cb69423bafcf33e7881e73033af1ac3b39a7aa4bb130b8cfe77
- Leaf
- 0xf457507b36ee51d7f8a2036b039be945949409faa8c43d4698964a1f51cfae5e
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/explorer/block"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:explorer-block",
"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:explorer-block",
"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:explorer-block",
"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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:datadesk:explorer-block",
"reference": "28Y6VNYDbcuAw2u2XpVguotcMab98R98CPVezDW5N2ot",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ibG9jayIsInJlZmVyZW5jZSI6IjI4WTZWTllEYmN1QXcydTJYcFZndW90Y01hYjk4Ujk4Q1BWZXpEVzVOMm90IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NTMwNzY5NzZ9.hootIM_oNzo2j6Iwg4flkzXzHD1_oI3pGN6xwmkBJJo"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:datadesk:explorer-block",
"reference": "6JQZptDLTzp3fu2pCp5YKhfC4aoEAqfWfi3YkRs1P9HA",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ibG9jayIsInJlZmVyZW5jZSI6IjZKUVpwdERMVHpwM2Z1MnBDcDVZS2hmQzRhb0VBcWZXZmkzWWtSczFQOUhBIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NTMwNzY5NzZ9.tIWOhsme22WiqavpHSAl-RqPzO13XnQpfcm9uPG6HMo"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91561",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:explorer-block",
"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": "94393",
"reference": "2UnsvDLe2ACRifiurZymwkSNinnmx9MwxpjbbMreqqzv",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleHBsb3Jlci1ibG9jayIsInJlZmVyZW5jZSI6IjJVbnN2RExlMkFDUmlmaXVyWnltd2tTTmlubm14OU13eHBqYmJNcmVxcXp2IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxNTYxLCJleHAiOjE3OTI1NTMwNzcwNTN9.38xY_19eL2OWYJ8FZCtbICc07i0FzvqHyJGfhfErDcM",
"solUsdPrice": 105.94
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "EVM block lookup by number, hash or latest on 16 chains: time, gas use, base fee, miner, transaction count and the transaction hashes in the block.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"block": "20000000",
"chain": "ethereum",
"limit": "5"
},
"type": "http"
},
"output": {
"example": {
"base_fee_gwei": 4.937,
"chain": "ethereum",
"chain_id": 1,
"gas_limit": 30000000,
"gas_used": 11089692,
"gas_used_percent": 36.96,
"hash": "0xd24fd73f794058a3807db926d8898c6481e902b7edb91ce0d479d6760f276183",
"miner": "0x95222290dd7278aa3ddd389cc1e1d165cc4bafe5",
"note": "Read straight from chain RPC. transactions lists hashes only (up to limit); look one up with the explorer/tx route.",
"number": 20000000,
"parent_hash": "0xb390d63aac03bbef75de888d16bd56b91c9291c2a7e38d36ac24731351522bd1",
"size_bytes": 51097,
"source": "Chain JSON-RPC (ethereum)",
"time": "2024-06-01T22:36:47.000Z",
"transaction_count": 134,
"transactions": [
"0xbb4b3fc2b746877dce70862850602f1d19bd890ab4db47e6b7ee1da1fe578a0d",
"0x541a536cd7ce7e9990876b7a49041f21590cd92251e699d9d924c0abbb2e98ba",
"0x273962e00767d8989b4def781a4f89d0eb44f8d3a9bb95582aa4c51275571fbe",
"0xb55cffb5003e6ce862bc49d241be3551f62a332e47291346681b30ea093a6ab8",
"0x98e455ecf0bfc642f3d9d66708ae36f2d469cdd0047505efbe37ef0ef96b4626"
],
"transactions_truncated": true,
"withdrawals_count": 16
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"block": {
"description": "optional: block number, 0x block hash, or latest (default) / safe / finalized",
"type": "string"
},
"chain": {
"description": "chain name or id",
"type": "string"
},
"limit": {
"description": "optional: how many transaction hashes to list, 0 to 100, default 25",
"type": "string"
}
},
"required": [
"chain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"base_fee_gwei": {
"description": "Base fee per gas in gwei",
"type": [
"number",
"null"
]
},
"chain": {
"description": "Blockchain the data is for",
"type": "string"
},
"chain_id": {
"description": "EVM chain id",
"type": "number"
},
"gas_limit": {
"description": "Gas limit",
"type": "number"
},
"gas_used": {
"description": "Gas consumed",
"type": "number"
},
"gas_used_percent": {
"description": "Gas used, as a percentage",
"type": [
"number",
"null"
]
},
"hash": {
"description": "Hash of the item",
"type": "string"
},
"miner": {
"description": "Address of the block producer",
"type": [
"string",
"null"
]
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"number": {
"description": "Number that was looked up",
"type": "number"
},
"parent_hash": {
"description": "Hash of the parent block",
"type": "string"
},
"size_bytes": {
"description": "Size, in bytes",
"type": [
"number",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"time": {
"description": "Time",
"type": "string"
},
"transaction_count": {
"description": "Number of transaction",
"type": "number"
},
"transactions": {
"type": "array"
},
"transactions_truncated": {
"description": "Transactions truncated",
"type": "boolean"
},
"withdrawals_count": {
"description": "Number of withdrawals",
"type": [
"number",
"null"
]
}
},
"required": [
"chain",
"chain_id",
"number",
"hash",
"time",
"transaction_count",
"transactions",
"note",
"source"
],
"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": "2026-10-21T03:22:37.095Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-21T03:22:36.639Z"
},
"resource": "https://saylorinnovations.com/api/explorer/block",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"block lookup",
"latest block number",
"evm block explorer",
"block gas usage",
"block transactions list"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "EVM block lookup by number, hash or latest on 16 chains: time, gas use, base fee, miner, transaction count and the transaction hashes in the block."
}What the leaf hashes
{"body":"bce9cb29169a8cb69423bafcf33e7881e73033af1ac3b39a7aa4bb130b8cfe77","id":119824,"kind":"listing","method":"baseline/1","observed_us":1793025616542414,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/explorer/block","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).
- 0xf457cdf87a1b7b85ee28511a12a24cbb8c807b93f3756faf34e48e16e3facc71
- 0xab9ec942769487f941cfb411d354bfe934af6ea48712075ead66b5dcbf083baf
- 0x46002a65be6a23a29da78c5dc52db92ffd144e8aba6cb1fd5bc7bb8631fcf519
- 0x5396264855ceaf27c31b0b298bfee00a27e7bdafc37e2aefc8bfb7ed01dca901
- 0x929eca67a4cce82483ee3f8d734b6fd187d4a2c5f09f03cc4230cb347c6db64f
- 0x4f83399566b593cd3e954879ea54fe3237cd0fe96af3b50924d4da9a64a81d72
- 0xd4d9fc0092db3af6ea51c508d097d6fb59122850516faa6cf7712800876357a6
- 0xed9a65d5f4e0a3aabc0250ffaef0804258c686fb759301df3011c8c327801673
- 0xbb4718fd976bfd59f0712e3e7e76688ff4f4ecf8fe3b35be5a4d32ac65bf8af7
- 0x2975e89c0c18a450c0bfde2c42c4c92b23bf147f75afffe0dee4f9c66939c8bf
- 0x07709318feb0c1102a4f704a544c82a5c58ec388fbdac0965060c1f5091cc976
- 0x86ae35463d854f3938d986999aa8497e14f0ba2aa6f39a269e1e6d1134f9b847
- 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
- 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae