{
  "generated_at": "2026-10-07T23:43:26Z",
  "kind": "chainwatch-demo-feed",
  "note": "Free aggregate demo feed. Best-effort, no SLA, not investment advice. Per-contract paid watches with private feeds are a later stage.",
  "max_seq": 3,
  "watchlist": [
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      "updated_at": "2026-10-07T23:43:07+00:00"
    },
    {
      "chain": "base",
      "address": "0x4200000000000000000000000000000000000010",
      "label": "Base L2 Standard Bridge (predeploy)",
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      ],
      "state": {
        "impl": "0xc0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d3c0d30010",
        "admin": "0x4200000000000000000000000000000000000018",
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        "code_hash": "0x1f958654ab06a152993e7a0ae7b6dbb0d4b19265cc9337b8789fe1353bd9dc35"
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      "updated_at": "2026-10-07T23:43:22+00:00"
    },
    {
      "chain": "base",
      "address": "0x4200000000000000000000000000000000000016",
      "label": "Base L2ToL1MessagePasser (predeploy)",
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      ],
      "state": {
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      "updated_at": "2026-10-07T23:43:26+00:00"
    },
    {
      "chain": "base",
      "address": "0x827922686190790b37229fd06084350E74485b72",
      "label": "Morpho Blue (Base)",
      "checks": [
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        "code"
      ],
      "state": {
        "impl": "\u2014",
        "admin": "\u2014",
        "beacon": "\u2014",
        "owner": "0xe6a41fe61e7a1996b59d508661e3f524d6a32075",
        "code_hash": "0xd9696fb7ca259953e10485c76b37757b55457d9e3261a83c9b28977f4ea9db9f"
      },
      "updated_at": "2026-10-07T23:43:18+00:00"
    },
    {
      "chain": "base",
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "label": "USDC (Circle, Base)",
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      ],
      "state": {
        "impl": "\u2014",
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        "beacon": "\u2014",
        "owner": "0x3abd6f64a422225e61e435bae41db12096106df7",
        "code_hash": "0xa6705a10bb756b5dea144591118be77d7af0c3eee3bf2dfe2583dcb0364fefab"
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      "updated_at": "2026-10-07T23:42:59+00:00"
    },
    {
      "chain": "base",
      "address": "0xA238Dd80C259a72e81d7e4664a9801593F98d1c5",
      "label": "Aave v3 Pool (Base)",
      "checks": [
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      ],
      "state": {
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      "updated_at": "2026-10-07T23:43:15+00:00"
    },
    {
      "chain": "base",
      "address": "0xcbB7C0000aB88B473b1f5aFd9ef808440eed33Bf",
      "label": "cbBTC (Coinbase Wrapped BTC)",
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        "owner": "0xbbc9b6001cf0a4fccffab7bdda1ab16cafb9db4f",
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      "updated_at": "2026-10-07T23:43:11+00:00"
    },
    {
      "chain": "base",
      "address": "0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA",
      "label": "USDbC (Bridged USDC, Base)",
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      ],
      "state": {
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      },
      "updated_at": "2026-10-07T23:43:03+00:00"
    },
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      "chain": "ethereum",
      "address": "0x3154Cf16ccdb4C6d922629664174b904d80F2C35",
      "label": "Base L1 Standard Bridge",
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      "updated_at": "2026-10-07T23:42:39+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0x49048044D57e1C92A77f79988d21Fa8fAF74E97e",
      "label": "Base Portal (OptimismPortal)",
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      "updated_at": "2026-10-07T23:42:43+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0x4Dbd4fc535Ac27206064B68FfCf827b0A60BAB3f",
      "label": "Arbitrum One Inbox",
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      "updated_at": "2026-10-07T23:42:55+00:00"
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    {
      "chain": "ethereum",
      "address": "0x73a79Fab69143498Ed3712e519A88a918e1f4072",
      "label": "Base SystemConfig (L1)",
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      "state": {
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        "beacon": "\u2014",
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        "code_hash": "0x7d1cd19d713c8d64bf663f4168250abfbf690dbb6214c25bf757fee383816914"
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      "updated_at": "2026-10-07T23:42:47+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0x8315177aB297bA92A06054cE80a67Ed4DBd7ed3a",
      "label": "Arbitrum One Bridge",
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      "updated_at": "2026-10-07T23:42:51+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2",
      "label": "Aave v3 Pool",
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        "impl": "0x728a138a4823392c2efa55e028d434f526fe03cf",
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        "code_hash": "0x96107dc4006b4c7fecd1827cfb275ffeef31e6194cd50466f85f8eb24ccf2679"
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      "updated_at": "2026-10-07T23:42:27+00:00"
    },
    {
      "chain": "ethereum",
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      "label": "Optimism L1 Standard Bridge",
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      "updated_at": "2026-10-07T23:42:31+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "label": "USDC (Circle)",
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      ],
      "state": {
        "impl": "\u2014",
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        "beacon": "\u2014",
        "owner": "0xfcb19e6a322b27c06842a71e8c725399f049ae3a",
        "code_hash": "0xd80d4b7c890cb9d6a4893e6b52bc34b56b25335cb13716e0d1d31383e6b41505"
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      "updated_at": "2026-10-07T23:42:18+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0xbEb5Fc579115071764c7423A4f12eDde41f106Ed",
      "label": "Optimism Portal",
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      "updated_at": "2026-10-07T23:42:35+00:00"
    },
    {
      "chain": "ethereum",
      "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
      "label": "USDT (Tether)",
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      "state": {
        "impl": "\u2014",
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        "owner": "0xc6cde7c39eb2f0f0095f41570af89efc2c1ea828",
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      "updated_at": "2026-10-07T23:42:23+00:00"
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  "recent_changes": [
    {
      "seq": 3,
      "chain": "ethereum",
      "address": "0x49048044d57e1c92a77f79988d21fa8faf74e97e",
      "label": "Base Portal (OptimismPortal)",
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      "new": "0x03863ab7f64b733cff85c8ff44a86601c568ca70",
      "detected_at": "2026-10-07T18:08:26+00:00",
      "severity": "high",
      "block_number": 26142197,
      "first_seen_block": 26142121
    }
  ],
  "retracted_seqs": [
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    2
  ]
}