Support multiple champions and add EIP-8141, EIP-7807

[dionysuzx]

Summary

• Updates champion field to champions array to support EIPs with multiple champions (max 2)
• Adds EIP-8141: Frame Transaction
• Adds EIP-7807: SSZ execution blocks

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Multiple Champions Support

Updates champion field to champions array to support EIPs with multiple champions (max 2).

• src/types/eip.ts: champion?: Champion → champions?: Champion[]
• src/data/eips.ts: Normalization to convert old champion to champions[]
• src/components/network-upgrade/EipCard.tsx: Multi-champion display with grouped contact details
• src/components/eip/EipTimeline.tsx: Multi-champion display in timeline
• src/components/RankPage.tsx: Multi-champion display in hover tooltip
• scripts/eip-schema.json: Limit champions to maximum of 2 per fork relationship

Screenshot

Data format

New EIPs with multiple champions use:

"champions": [
  { "name": "Felix Lange", "discord": "@fjl" },
  { "name": "lightclient", "discord": "@lightclient" }
]

Existing single-champion data continues to work unchanged.

---

EIP-8141: Frame Transaction

Note

This PR was generated with claude sop.convert-eip.md (see sop.convert-eip.md).

Ported to forkcast format.

Files

• src/data/eips/8141.json - EIP data

Sources Used

Source	Reference
Raw EIP	ethereum/EIPs/EIPS/eip-8141.md
Original PR	#11202 - Add EIP: Frame Transaction
Commits	3 commits (2026-01-29)
PR Discussion	2 comments
Eth Magicians	EIP-8141 Frame Transaction (13 posts)
Call Transcript	acde/229
Eth R&D Discord	yes
Headliner Proposal	https://ethereum-magicians.org/t/hegota-headliner-proposal-frame-transaction/27618

Metadata

• Champions: Felix Lange (fjl) & lightclient
• Layer: EL
• Status: none
• Headliner: yes

---

EIP-7807: SSZ execution blocks

Note

This PR was generated with claude sop.convert-eip.md (see sop.convert-eip.md).

Ported to forkcast format.

Files

• src/data/eips/7807.json - EIP data

Sources Used

Source	Reference
Raw EIP	ethereum/EIPs/EIPS/eip-7807.md
Original PR	#9017 - Add EIP: SSZ execution blocks
Commits	12 commits (2024-11-13 to 2025-10-06)
PR Discussion	2 issue comments, 3 review comments
Eth Magicians	EIP-7807: SSZ execution blocks (2 posts)
Call Transcript	acde/229
Eth R&D Discord	no
Headliner Proposal	https://ethereum-magicians.org/t/hegota-headliner-proposal-ssz-execution-blocks/27619

Metadata

• Champion: Etan Kissling (etan-status)
• Layer: EL
• Status: none
• Headliner: yes

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🤖 Generated with Claude Code
🔍 Reviewed with Codex

[dionysuzx]

Superseded by ethereum#131