Guard · Ethereum

Allow

This is Backed xStocks's published NVDA contract on Ethereum.

The issuer can block transfers and change token rules.

Source verified.

QED is read-only by design: it never holds keys, never submits transactions, and never recommends; that is why anyone can integrate it.

This point-in-time review does not prove backing, custody, reserves, solvency, safety, price, liquidity, or endorsement. Re-check before relying on changed chain or issuer facts.

Issuer identity

Status: match

Publisher: Backed xStocks
Reviewed address: 0xc845b2894dbddd03858fd2d643b4ef725fe0849d
Ticker: NVDA
Published contract: 0xc845b2894dBddd03858fd2D643B4eF725fE0849d

Powers and source

Source status: verified via Sourcify.

Can blockCan change rules Source verified (exact match)

Can seize tokens: no evidence observed.
Can block transfers: yes — pausable (currently not paused), pauser control, sanctions list.
Can change token rules: yes — proxy implementation, proxy admin, owner role.

Technical details

Transfer-blocking signals

pausable: isPaused() is implemented; currently not paused; pauser() returned 0x8768cDA7A463DAe1baA6b2500EFB025ebd7FFC50; owner() returned 0x49754062E35f7591B93cc4F9915965be89643a65.
pauser: pauser() returned 0x8768cDA7A463DAe1baA6b2500EFB025ebd7FFC50; the getter alone does not establish its permissions.
sanctions_list: sanctionsList() returned 0x40C57923924B5c5c5455c48D93317139ADDaC8fb; transfer effects were not inferred from the getter alone.

Rule-change signals

eip1967_implementation: EIP-1967 implementation slot points to 0x65c40D624Af3B18C109fBF87B7DEff34CdC5f19b; upgrade permissions were not established by this read.
eip1967_admin: EIP-1967 admin slot contains 0x696C685a02A1Fc6E2AaCbe26CD6695F4f4a6a085.
owner_getter: owner() returned 0x49754062E35f7591B93cc4F9915965be89643a65; the getter alone does not establish which actions the role can take.

Implementation source: Exact match; proxy: Exact match. Observed at 2026-10-06T19:45:17Z.

Absence of observed signals is not proof that no authority exists.

Wallet transfer restrictions

Check status: not requested

Reasons

The token contract matches the active publisher registry entry on this chain. publisher_contract_match

Known pools

No matching pool facts are currently indexed.

Signed document (JSON)

Verify this payload with POST /verify. Read the verification guide.

{
  "id": "ff359b60850c32f8060b54ee9870ed8b8cb95169f66d5460da82032bf1617742",
  "kind": "guard",
  "chain": "Ethereum",
  "address": "0xc845b2894dbddd03858fd2d643b4ef725fe0849d",
  "subject_type": "token",
  "subject_address": "0xc845b2894dbddd03858fd2d643b4ef725fe0849d",
  "wallet": null,
  "identity": {
    "publisher": "Backed xStocks",
    "matched_contract": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
    "ticker": "NVDA",
    "status": "match"
  },
  "powers": {
    "chain": "Ethereum",
    "contract": "0xc845b2894dbddd03858fd2d643b4ef725fe0849d",
    "can_seize": [],
    "can_block": [
      {
        "code": "pausable",
        "detail": "isPaused() is implemented; currently not paused; pauser() returned 0x8768cDA7A463DAe1baA6b2500EFB025ebd7FFC50; owner() returned 0x49754062E35f7591B93cc4F9915965be89643a65."
      },
      {
        "code": "pauser",
        "detail": "pauser() returned 0x8768cDA7A463DAe1baA6b2500EFB025ebd7FFC50; the getter alone does not establish its permissions."
      },
      {
        "code": "sanctions_list",
        "detail": "sanctionsList() returned 0x40C57923924B5c5c5455c48D93317139ADDaC8fb; transfer effects were not inferred from the getter alone."
      }
    ],
    "can_change_rules": [
      {
        "code": "eip1967_implementation",
        "detail": "EIP-1967 implementation slot points to 0x65c40D624Af3B18C109fBF87B7DEff34CdC5f19b; upgrade permissions were not established by this read."
      },
      {
        "code": "eip1967_admin",
        "detail": "EIP-1967 admin slot contains 0x696C685a02A1Fc6E2AaCbe26CD6695F4f4a6a085."
      },
      {
        "code": "owner_getter",
        "detail": "owner() returned 0x49754062E35f7591B93cc4F9915965be89643a65; the getter alone does not establish which actions the role can take."
      }
    ],
    "token_paused": false,
    "sanctions_list": "0x40C57923924B5c5c5455c48D93317139ADDaC8fb",
    "unavailable": [],
    "source_verified_subject": "implementation",
    "source_verified": "exact_match",
    "source_verified_proxy": "exact_match",
    "observed_at": "2026-10-06T19:45:17Z",
    "block": 26135510,
    "slot": null,
    "reads": [
      {
        "method": "eth_blockNumber",
        "params": [],
        "result_hash": "e7c116ea2e52d7fd8920c7adc3023f917cb2debbb4ebf1de255a6590d3692945",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_getStorageAt",
        "params": [
          "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
          "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc",
          "0x18ecbd6"
        ],
        "result_hash": "4ae36ddaffc4af8fc962d517fe3748294fe9f219984f1e9322456e4b516ac5d3",
        "raw_result": "0x00000000000000000000000065c40d624af3b18c109fbf87b7deff34cdc5f19b",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_getStorageAt",
        "params": [
          "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
          "0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103",
          "0x18ecbd6"
        ],
        "result_hash": "a04b9d987b84c17ea3ff251e2a44193d8e30e83cc4d6deff92e02c885fbe58aa",
        "raw_result": "0x000000000000000000000000696c685a02a1fc6e2aacbe26cd6695f4f4a6a085",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_getStorageAt",
        "params": [
          "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
          "0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50",
          "0x18ecbd6"
        ],
        "result_hash": "88700ae849c5ddd12e1d8a2c3221be6bec9061deee12e0a7aa7f7e8a0eda2d5f",
        "raw_result": "0x0000000000000000000000000000000000000000000000000000000000000000",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0x5c975abb",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "1c9409806518d1a5f52d79299ea0289ea2ff527e05895cd8f7a36d4cca28a13e",
        "raw_result": "0x",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0xb187bd26",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "88700ae849c5ddd12e1d8a2c3221be6bec9061deee12e0a7aa7f7e8a0eda2d5f",
        "raw_result": "0x0000000000000000000000000000000000000000000000000000000000000000",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0x8da5cb5b",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "70d61a6153bb2a528dd51f58f9c74458472b325f260af96fe3df31adb77cd2db",
        "raw_result": "0x00000000000000000000000049754062e35f7591b93cc4f9915965be89643a65",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0x9fd0506d",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "6a54301da5b342a375edfdfd8d7e03c3d3ca124a084fbbcb2b66560e17f4a7e8",
        "raw_result": "0x0000000000000000000000008768cda7a463dae1baa6b2500efb025ebd7ffc50",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0xec571c6a",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "5c3c33908002da03615788880b8d749842a8464d01499f80f821094aa522a14a",
        "raw_result": "0x00000000000000000000000040c57923924b5c5c5455c48d93317139addac8fb",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0xfe575a870000000000000000000000000000000000000000000000000000000000000000",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "1c9409806518d1a5f52d79299ea0289ea2ff527e05895cd8f7a36d4cca28a13e",
        "raw_result": "0x",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "eth_call",
        "params": [
          {
            "data": "0xe47d60600000000000000000000000000000000000000000000000000000000000000000",
            "to": "0xc845b2894dBddd03858fd2D643B4eF725fE0849d"
          },
          "0x18ecbd6"
        ],
        "result_hash": "1c9409806518d1a5f52d79299ea0289ea2ff527e05895cd8f7a36d4cca28a13e",
        "raw_result": "0x",
        "block": 26135510,
        "slot": null
      },
      {
        "method": "GET",
        "params": [
          "https://sourcify.dev/server/v2/contract/1/0x65c40D624Af3B18C109fBF87B7DEff34CdC5f19b"
        ],
        "result_hash": "fde34a57f99359352117b76dcc7e973f6b1e512e806255d6b7e5cfe69d7a92f0",
        "block": null,
        "slot": null
      },
      {
        "method": "GET",
        "params": [
          "https://sourcify.dev/server/v2/contract/1/0xc845b2894dbddd03858fd2d643b4ef725fe0849d"
        ],
        "result_hash": "adf6a59f5f244871efa77d6a13b5e0d8b2fb9f99b9cdc252fda054e4e114b0eb",
        "block": null,
        "slot": null
      }
    ]
  },
  "source": {
    "status": "verified",
    "provider": "Sourcify"
  },
  "pools": [],
  "verdict": "allow",
  "reasons": [
    {
      "code": "publisher_contract_match",
      "detail": "The token contract matches the active publisher registry entry on this chain."
    }
  ],
  "observed_at": "2026-10-06T19:47:20Z",
  "reads": [
    {
      "method": "eth_call",
      "params": [
        "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
        "symbol()"
      ],
      "result_hash": "44a9ba3ab933ba0bcca60212d5e935024e6f02408c93dfe1d02d7879e0fbdfb8",
      "raw_result": "Some(\"NVDAx\")",
      "block": null,
      "slot": null
    },
    {
      "method": "eth_call",
      "params": [
        "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
        "name()"
      ],
      "result_hash": "756b99cba5054e3b45d0fb189091448e7ca402fd361b42f7f9fa604d1aa56c15",
      "raw_result": "Some(\"NVIDIA xStock\")",
      "block": null,
      "slot": null
    },
    {
      "method": "eth_call",
      "params": [
        "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
        "decimals()"
      ],
      "result_hash": "c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764",
      "raw_result": "Some(18)",
      "block": null,
      "slot": null
    },
    {
      "method": "eth_call",
      "params": [
        "0xc845b2894dBddd03858fd2D643B4eF725fE0849d",
        "totalSupply()"
      ],
      "result_hash": "19847979029ee2b3845e120742b08012e5850a4d2b0ebb98b2cc784798034a46",
      "raw_result": "Some(\"110180538701145229619549\")",
      "block": null,
      "slot": null
    }
  ],
  "reads_truncated": false,
  "public_key": "GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn",
  "signature": "rgVMvKYXSA1sUUq6b5iXalEG8WoetvpivXJHRr1c1J+0HWZ/tefaxr29XwYvAznfPu7RTwTmQ5XKMcb8KCnLBg==",
  "dev": false
}

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