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roethke merged 5 commits into from
Sep 25, 2026
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docs: correct Cobalt TEE feature summary to registration migration #2014

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2667b42
docs: correct Cobalt TEE feature summary to registration migration
roethke Sep 25, 2026
264a979
Merge branch 'master' into roethke/cobalt-tee-registration-summary
roethke Sep 25, 2026
a82e058
docs: apply review feedback to Cobalt TEE summary
roethke Sep 25, 2026
7cc74e7
Merge remote-tracking branch 'origin/roethke/cobalt-tee-registration-…
roethke Sep 25, 2026
1cbc87b
docs: reword TEE summary to attribute verification to onchain contracts
roethke Sep 25, 2026
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2 changes: 1 addition & 1 deletion docs/llms-full.txt
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Expand Up @@ -518,7 +518,7 @@ const client = createPublicClient({ chain: base, transport: http() })

### Cobalt

- [Overview](https://docs.base.org/upgrades/cobalt/overview): Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates Base to a Trusted Execution Environment.
- [Overview](https://docs.base.org/upgrades/cobalt/overview): Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates TEE signer registration to onchain attestation verification.

- [Dynamic Upgrades](https://docs.base.org/upgrades/cobalt/dynamic-upgrades): An Ethereum smart contract stores upgrade timestamps for Base nodes, allowing forks to activate at the scheduled time with no client restart.

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2 changes: 1 addition & 1 deletion docs/llms.txt
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Expand Up @@ -452,7 +452,7 @@

### Cobalt

- [Overview](https://docs.base.org/upgrades/cobalt/overview): Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates Base to a Trusted Execution Environment.
- [Overview](https://docs.base.org/upgrades/cobalt/overview): Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates TEE signer registration to onchain attestation verification.

- [Dynamic Upgrades](https://docs.base.org/upgrades/cobalt/dynamic-upgrades): An Ethereum smart contract stores upgrade timestamps for Base nodes, allowing forks to activate at the scheduled time with no client restart.

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6 changes: 3 additions & 3 deletions docs/upgrades/cobalt/overview.mdx
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@@ -1,6 +1,6 @@
---
title: "Overview"
description: "Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates Base to a Trusted Execution Environment."
description: "Cobalt improves the B20 token standard, adds validity transactions, introduces dynamic node upgrades, and migrates TEE signer registration to onchain attestation verification."
---

| | Status | Date |
Expand Down Expand Up @@ -35,11 +35,11 @@ Dynamic Upgrades introduces an Ethereum smart contract that stores upgrade times

</Accordion>

<Accordion title="TEE Migration">
<Accordion title="TEE Registration Migration">

**Base** · Infrastructure

Cobalt migrates Base infrastructure to run inside a Trusted Execution Environment (TEE). Detailed specifications will be published as the feature is finalized.
Cobalt changes how new Trusted Execution Environment (TEE) signers are registered: AWS Nitro attestations are trustlessly verified fully onchain using checked P-384 hints, replacing the RISC Zero and Boundless proving flow. Registration is faster and no longer depends on an external offchain proving service. Enclave key generation, PCR0 image selection, and proof verification are unchanged. See [Registrar](/specifications/base-protocol/proofs/registrar) for the full specification.

</Accordion>
</AccordionGroup>
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