Contract Powers Registry / polygon

WBTC (Polygon)

0x1bfd67037b42cf73acf2047067bd4f2c47d9bfd6 on polygon

In one line

upgradeable proxy (etherscan-declared); retained powers: ownership, upgrade; 1 further owner-only function(s) the engine could not categorise (listed under coverage).

UpgradeableYes
Source verifiedYes
Controlled byNo owner() found
Confirmed powers2 +1 uncategorised

Can this code be replaced?

Yes — this is a proxy. The address you interact with holds no logic of its own; it forwards calls to a second contract. Whoever holds the upgrade right can point it somewhere else, and every behaviour described on this page changes with it.

Patternetherscan-declared
Current logic0x7ffb3d637014488b63fb9858e279385685afc1e2
Logic nameUChildERC20
Logic source verifiedYes
Raw storage evidence (1)

Who holds the keys?

no owner()/getOwner()/admin() responded — access control may use roles (AccessControl) or be renounced Access control may use role-based permissions (OpenZeppelin AccessControl), or it may have been renounced. This registry does not enumerate role holders.

What the privileged role can still do

Each card is a capability found in the code. declared = the contract’s published interface exposes it. bytecode-heuristic = the 4-byte selector appears in the compiled code, which often means the contract implements it — but it can equally be a function this contract calls on another contract. Only a verified source settles that.

Control can be transferred

declared

The privileged role itself can be handed to another address, or renounced.

Evidence (4)
  • grantRole(bytes32,address) implementation-abi
  • revokeRole(bytes32,address) implementation-abi
  • transferProxyOwnership(address) abi
  • revokeRole(bytes32,address) implementation-bytecode

Code can be replaced

declared

The logic behind this address can be swapped for different code. Everything below can change with it.

Evidence (2)
  • updateImplementation(address) abi
  • updateImplementation(address) bytecode-selector

What this page did not categorise

1 more function here is restricted to a privileged role, and this engine has no category for it. The list above matches function names against a fixed set of power categories. These ones are gated in the published source — an only… modifier or a sender check — but their names match nothing, so no card was written for them. They are named here in full rather than dropped, because a report that looks complete is worse than one that says where it stops.

FunctionName shapeRestricted byRead from
updateAndCall(address,bytes) sets a value onlyProxyOwnercontract source

Where to start: 1 of these 1 are a repeating name shape — 1 sets a value — which usually means configuration rather than a new capability. The name shape is read from the name alone and claims nothing about behaviour; setOracle and setFeeRecipient share it and differ completely.

What to do with this: open the contract on the explorer and read this function. The gate shown is the exact text found in the source. This engine does not guess what the function does. Of the 16 state-changing functions in the published interface, 4 matched a known category and 1 is listed here.

Is there a bug bounty on this?

No live bug-bounty program matched this contract’s name in my index (169 Immunefi + 52 Cantina programs, rebuilt daily). Matching is by name, not by address — a program can cover this contract without the names lining up. Browse the full index at Bounty Radar.

Raw facts

Chainpolygon (chainId 137)
Contract nameUChildERC20Proxy
Compilerv0.6.6+commit.6c089d02
LicenseNone
Bytecode size2,949 bytes (logic: 14,791)
DELEGATECALLpresent
SELFDESTRUCTabsent
CREATE2absent
Explorerview on block explorer ↗

Has any of this changed?

This page is rebuilt from the chain and diffed against the previous day. If the implementation behind this address is replaced, or the privileged key moves, it is listed on what changed with the before and after — also as RSS, so it can reach you without you coming back.

How this was produced, and what it cannot tell you

Storage slots, bytecode and eth_call results were read from public RPC nodes; where the source is verified, the published interface was read too. Nothing here is copied from another site’s opinion. Generated in 1058 ms on 2026-10-12.

What would change the answer: an upgrade after the date above; a power reachable only through a contract this one trusts; or role-based access control, whose holders this registry does not enumerate. Re-read the chain before you rely on it.

Machine-readable

Same facts as JSON, free, no key: /c/polygon/0x1bfd67037b42cf73acf2047067bd4f2c47d9bfd6.json. Live lookups for any address (not just this list) are $0.05 per call.

Want a human-grade read?

This page is automated pattern-matching. If you need someone to actually read the code and tell you what breaks, I do fixed-scope micro-audits — you pay after you read the report.