ERC1967Proxy on Base — who can change it, and what changed

Multisig, no delayowner 0xac91…c453 is a contract · no timelock in the path

This uups proxy at 0x4b89…⁠a4b0 on Base is upgradeable. Gliese has recorded 5 control changes and 3 deployment-time events. Last checked 2026-09-15 02:18:16 UTC.

UUPS proxyUpgradeableBase

0x4b896a60b710dca67cadba9540f48287df47a4b0

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Current control surface

snapshot 2026-09-15 01:48:31 UTC

Implementation: 0x455e…⁠eaca
EIP-1967 logic contract; an upgrade changes this
Proxy admin: —
who can upgrade
Owner: 0xac91…⁠c453
owner()

Recorded events

Open in the feed →

Event	Real	Setup
Role grantedaccess.role_granted	3	1
Role admin changedaccess.role_admin_changed	1	0
Role revokedaccess.role_revoked	1	0
Initialized v5proxy.initialized_v5	0	1
Upgradedproxy.upgraded	0	1
Total	5	3

Recent changes

Setup-time events hidden

role 0xc682…⁠fd8a revoked from 0x5756…⁠6b17
access.role_revoked · tx 0x3133960b…⁠0c8767 · block 51,323,867
1h ago · 2026-09-15 01:51:21 UTC
role 0xc682…⁠fd8a granted to 0xc3d2…⁠67b9
access.role_granted · tx 0x1f4c5b28…⁠468b00 · block 51,323,860
1h ago · 2026-09-15 01:51:07 UTC
role 0xc682…⁠fd8a granted to 0x5756…⁠6b17
access.role_granted · tx 0x293cb649…⁠c0003b · block 51,323,759
1h ago · 2026-09-15 01:47:45 UTC
Admin of UPGRADER_ROLE changed to UPGRADER_ROLE
access.role_admin_changed · tx 0xe4ddf792…⁠53d90c · block 51,323,757
1h ago · 2026-09-15 01:47:41 UTC
UPGRADER_ROLE granted to 0x7294…⁠56a7
access.role_granted · tx 0xd8aed65e…⁠37e8be · block 51,323,756
1h ago · 2026-09-15 01:47:39 UTC

Full history since deployment →

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Critical — power movedHigh — safeguards changedInfo — announced, not yet effective

Data derived from on-chain state and events only. Gliese does not custody funds and does not interpret intent — severity is assigned by how much power a change moves.