Contract control history
W3Card on Base — who can change it, and what changed
Upgradeable by a single keyowner 0x0cb4…9a33 is an externally owned account (one private key)
This unknown at 0xfd21…87b6 on Base is on the radar. Gliese has recorded 4 control changes. Last checked 2026-09-10 17:47:02 UTC.
2 critical, recentUnknownBase
Current control surface
snapshot 2026-09-10 17:07:53 UTC- Implementation
- —EIP-1967 logic contract; an upgrade changes this
- Proxy admin
- —who can upgrade
- Owner
- owner()
Recorded events
Open in the feed →| Event | Real | Setup |
|---|---|---|
| Transfer startedownable.transfer_started | 2 | 0 |
| Transferredownable.transferred | 2 | 0 |
| Total | 4 | 0 |
Recent changes
Setup-time events hidden- Ownership transferred to 0x0cb4…9a33ownable.transferred · tx 0xc0ea4d52…1254aa · block 51,135,320· 2026-09-10 17:06:27 UTC
- Ownership transfer to 0x0cb4…9a33 started, pending acceptanceownable.transfer_started · tx 0x0e30e0f6…c453fa · block 51,135,310· 2026-09-10 17:06:07 UTC
- Ownership transferred to 0x4f1c…a365ownable.transferred · tx 0x0e30e0f6…c453fa · block 51,135,310· 2026-09-10 17:06:07 UTC
- Ownership transfer to 0x4f1c…a365 started, pending acceptanceownable.transfer_started · tx 0x0e30e0f6…c453fa · block 51,135,310· 2026-09-10 17:06:07 UTC
Get alerted when this contract’s control changes
Free for personal wallets. Telegram, within a minute of the block.
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.