← The evidence ledger
Evidence row 119612
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/defi/hacks
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 0bc93f36fec2d493de4320aa05b26747310e2907c8e8cd968db8c80ee3ab8b87
- Leaf
- 0xf0f9c6485e94ba874990712924d627d3f5eb08db75d308f6588d85bd63438214
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/defi/hacks"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:defi-hacks",
"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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"memo": "saylor:datadesk:defi-hacks",
"reference": "DYSZwRDX46L4SDjbsadm84F2Bi2ryN7CBTaRKcvre29g",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpkZWZpLWhhY2tzIiwicmVmZXJlbmNlIjoiRFlTWndSRFg0Nkw0U0RqYnNhZG04NEYyQmkycnlON0NCVGFSS2N2cmUyOWciLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjE3MTU1Nzk1NX0.LyqmSWAgylogrRyhs2EL8pTuFLePHQZ8PFkxdUc_cDE"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Crypto hacks and exploits - DefiLlama database of 1,300 incidents with amount lost, chain, technique, classification and totals by year, filterable by chain",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"chain": "ethereum",
"limit": "5",
"year": "2024"
},
"type": "http"
},
"output": {
"example": {
"bridge_hacks": 4,
"by_classification": [
{
"count": 14,
"lost_usd": 427884500,
"name": "Key Compromise"
},
{
"count": 8,
"lost_usd": 250555000,
"name": "Social Engineering"
},
{
"count": 9,
"lost_usd": 60663000,
"name": "Input Validation"
},
{
"count": 7,
"lost_usd": 58831000,
"name": "Frontend & Infrastructure"
},
{
"count": 11,
"lost_usd": 51234000,
"name": "Token & Share Accounting"
},
{
"count": 21,
"lost_usd": 50131692,
"name": "Access Control"
},
{
"count": 4,
"lost_usd": 28953000,
"name": "Reentrancy"
},
{
"count": 8,
"lost_usd": 26021000,
"name": "Oracle Manipulation"
}
],
"by_year": [
{
"count": 100,
"lost_usd": 960892892,
"year": 2024
}
],
"filters": {
"chain": "ethereum",
"classification": null,
"year": "2024"
},
"hacks": 100,
"incidents": [
{
"bridge": false,
"chains": [
"Ethereum"
],
"classification": "Key Compromise",
"date": "2024-02-09",
"lost_usd": 290000000,
"name": "PlayDapp",
"returned_usd": null,
"source": null,
"target": "DeFi Protocol",
"technique": "Hot Wallet Key Compromised"
},
{
"bridge": false,
"chains": [
"Ethereum"
],
"classification": "Social Engineering",
"date": "2024-07-18",
"lost_usd": 234900000,
"name": "WazirX: India",
"returned_usd": null,
"source": null,
"target": "CEX",
"technique": "Signer Phishing"
},
{
"bridge": false,
"chains": [
"Arbitrum",
"Ethereum"
],
"classification": "Input Validation",
"date": "2024-04-19",
"lost_usd": 44700000,
"name": "Hedgey",
"returned_usd": null,
"source": null,
"target": "DeFi Protocol",
"technique": "Missing Input Validation"
}
],
"returned_usd": 5100000,
"sorted_by": "amount",
"source": "DefiLlama hacks database",
"total_lost_usd": 960892892
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"chain": {
"description": "optional chain, e.g. ethereum, solana, bsc, arbitrum",
"type": "string"
},
"limit": {
"description": "optional 1-50, default 10",
"type": "string"
},
"year": {
"description": "optional four-digit year",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"bridge_hacks": {
"description": "Bridge hacks",
"type": "number"
},
"by_classification": {
"description": "By classification",
"items": {
"type": "object"
},
"type": "array"
},
"by_year": {
"description": "By year",
"items": {
"type": "object"
},
"type": "array"
},
"checked_at": {
"description": "Time the check was run (UTC)",
"type": [
"string",
"null"
]
},
"filters": {
"description": "Filters applied to this query"
},
"hacks": {
"type": "number"
},
"incidents": {
"items": {
"properties": {
"bridge": {},
"chains": {
"description": "Chains covered",
"items": {
"type": "string"
},
"type": "array"
},
"classification": {
"description": "Classification assigned by the source",
"type": [
"string",
"null"
]
},
"date": {
"description": "Date (YYYY-MM-DD)",
"type": "string"
},
"lost_usd": {
"description": "Lost, in US dollars",
"type": [
"number",
"null"
]
},
"name": {
"description": "Name",
"type": "string"
},
"returned_usd": {
"description": "Returned, in US dollars"
},
"source": {
"description": "Data source the values come from"
},
"target": {
"description": "Target value or target date"
},
"technique": {
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"returned_usd": {
"description": "Returned, in US dollars",
"type": [
"number",
"null"
]
},
"sorted_by": {
"description": "Sorted by",
"type": [
"string",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": [
"string",
"null"
]
},
"total_lost_usd": {
"description": "Total lost usd",
"type": "number"
}
},
"required": [
"hacks",
"incidents"
],
"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": "2026-10-16T17:23:57.996Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-16T17:23:57.672Z"
},
"resource": "https://saylorinnovations.com/api/defi/hacks",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"defi hacks",
"crypto exploits",
"rekt",
"smart contract exploits",
"bridge hacks"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Crypto hacks and exploits - DefiLlama database of 1,300 incidents with amount lost, chain, technique, classification and totals by year, filterable by chain"
}What the leaf hashes
{"body":"0bc93f36fec2d493de4320aa05b26747310e2907c8e8cd968db8c80ee3ab8b87","id":119612,"kind":"listing","method":"baseline/1","observed_us":1793025616122115,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/defi/hacks","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).
- 0xf0f989691e88094c5507c3a79b069391bd448261514203ae895ee75759b7a4c9
- 0x377d5f849f6669b4eb39da8d60969ebdb1c5cae04a7f923462152eb2d2faa7ac
- 0x18549b1b5ebadf0b7c9fb9cfa71c71952abc35d1ce91e026c90cd7f393443c92
- 0xf023d70ec18272831b17f96aee6f752e7b7dcf4b20d7effaaba35db35edafa8e
- 0x7816246a602d05784f1dd9e720e7522f75a5848aa0a68538e6da1799ee0e7506
- 0xb3d1d9ea7378ce151b795e1cf185fc208bb030996d60b8b4d5d6f7072924f2a1
- 0x532c5ffa165288667eecad141db716392b5361026dddb11a6d4898a2944e5d38
- 0xaddd996b3ad73051be09018e4a1101457378c4d962819b0e2ebb246e08b03257
- 0xbc309687327c2973348c0c4921ebcd1852025f9370a40fe3622a74fbff15fc25
- 0x7d04371228279440387b9131e1ecd711e15d7ec89ef830b07659d5cf6474b401
- 0x514d76e971925e71327eba8800da6dbdf3c60a7c174890b0694dc64fd775ac72
- 0x4d2e94451b5ffc570a23dee9d1525bc305f1009994ffe23d8e2e7d45c60f6209
- 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
- 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae