ERC-7871 primary sources — 2026-05-07

Project status in this pass

• No standalone ERC-7871 whitepaper or litepaper surfaced.
• The clearest source of truth was the draft ERC itself, backed by the raw ERC markdown, the ERCs mirror page, and JAW’s implementation-facing wallet_sign documentation.
• The main mechanism signal across sources was consistent: ERC-7871 tries to turn fragmented signing RPCs into one wallet-mediated interface that can expand with future EIP-191 message types.

Primary-source snapshots

1) Canonical ERC page

• URL: https://eips.ethereum.org/EIPS/eip-7871
• Key excerpt/signals:
  • The abstract defines wallet_sign as a new JSON-RPC method for EIP-191 messages.
  • The draft says the method can request signatures over any EIP-191 signed_data version and discover signing capabilities through EIP-5792 wallet_getCapabilities.
  • The motivation says the goal is to consolidate today’s fragmented signing methods under one RPC surface.
• Why it mattered:
  • This is the clearest evidence that ERC-7871 belongs in the corpus as wallet signing interface infrastructure.

2) Raw ERC markdown / interface structure

• URL: https://raw.githubusercontent.com/ethereum/ERCs/master/ERCS/erc-7871.md
• Key excerpt/signals:
  • The spec separates top-level version, optional address, and nested request.type plus request.data.
  • The currently defined request types are 0x00, 0x01, and 0x45, corresponding to EIP-191 validator data, EIP-712 typed data, and personal-sign style messages.
  • Future request interfaces are intentionally left to later ERCs.
• Why it mattered:
  • These details show ERC-7871 is standardizing a reusable signing envelope, not merely renaming personal_sign.

3) Raw ERC markdown / proposal maturity

• URL: https://raw.githubusercontent.com/ethereum/ERCs/master/ERCS/erc-7871.md
• Key excerpt/signals:
  • The draft still leaves Rationale, Backwards Compatibility, and Security Considerations as TODO sections.
  • The interface itself is nevertheless fully sketched with request and response schemas.
• Why it mattered:
  • This was the clearest signal that ERC-7871 is conceptually useful but still immature enough that downstream adoption will likely be partial and implementation-shaped.

4) ERCs mirror page

• URL: https://ercs.ethereum.org/ERCS/erc-7871
• Key excerpt/signals:
  • The mirror reproduces the same abstract, motivation, and RPC schema from the canonical draft.
  • It reinforces that capabilities are meant to compose with EIP-5792 rather than live in an isolated signing API.
• Why it mattered:
  • This provided a second canonical rendering of the proposal and helped confirm the control-plane framing.

5) JAW wallet_sign docs

• URL: https://docs.jaw.id/api-reference/wallet_sign
• Key excerpt/signals:
  • JAW explicitly describes wallet_sign as a unified signing method supporting multiple message formats and labels it ERC-7871.
  • The docs say the method delegates to personal_sign for 0x45 and eth_signTypedData_v4 for 0x01.
  • The behavior section shows the likely adoption path: a wallet can ship a unified top-level method even if it still maps onto older internal signing methods underneath.
• Why it mattered:
  • This is the best concrete evidence from this pass that ERC-7871 is already becoming implementation-facing wallet plumbing.

Working conclusion

ERC-7871 is best cataloged as wallet signing control-plane infrastructure. The decisive evidence in this pass was the draft’s single-method envelope for EIP-191 signing, its composition with EIP-5792 capability discovery, and JAW’s real-world documentation showing how a wallet can adopt the unified interface while still bridging to existing signing methods under the hood.