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LibraryConsensus2023Design paperCorpus record

Increase max attestation inclusion slot

EIP 7045. Danny Ryan.

EIP 7045, Increase max attestation inclusion slot. Increases max attestation inclusion slot from attestation.slot + SLOTS_PER_EPOCH to the last slot of epoch N+1 where N is the epoch containing the attestation slot.

Status in the source: Final. A reading of the public specification, not a copy of it and not a certification.

Increase max attestation inclusion slot is worth reading for the rule it actually adds: Increases max attestation inclusion slot from attestation.slot + SLOTS_PER_EPOCH to the last slot of epoch N+1 where N is the epoch containing the attestation slot.

The five-minute read

The rule

Increases max attestation inclusion slot from attestation.slot + SLOTS_PER_EPOCH to the last slot of epoch N+1 where N is the epoch containing the attestation slot.

What was already failing

A consensus change that is only described in a client does not tell an outside verifier what must be true.

What the number does not mean

The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it.

What a builder should be able to point at

An implementation either constrains SLOTS_PER_EPOCH, LMD, GHOST or it is a different design.

One action, walked through

  1. Open EIP 7045 and read the status line before the examples.
  2. Write down the rule in one sentence. A fair version of that sentence is: Increases max attestation inclusion slot from attestation.slot + SLOTS_PER_EPOCH to the last slot of epoch N+1 where N is the epoch containing the attestation slot.
  3. Name the object that changes: SLOTS_PER_EPOCH, LMD, GHOST.
  4. Ask what an old client, an old contract, or an offline counterparty does. If the document is silent, the silence is part of the design.

The argument, unpacked

What the text is allowed to settle

Ethereum Improvement Proposal 7045 can settle the shape of Increase max attestation inclusion slot. It cannot settle whether a later client, a later fork, or a later wallet still does this.

What this page will not pretend

There is no benchmark, no adoption number, and no claim that the mechanism is safe outside the assumptions written in the source.

What has to be true

  • You are implementing EIP 7045 at the status the text itself states: Final.
  • The object that has to change is SLOTS_PER_EPOCH, LMD, GHOST. A neighbouring document with a similar name is not this one.
  • Parameter choices in one release are not the proof.

What happened after the paper

The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it. Later documents can narrow, replace, or ignore this one. Cite the number you mean.

What to check before you use the idea

  • What does Increase max attestation inclusion slot treat as decided, and what can still be reorged?
  • What share of stake or hash power does the argument need?
  • Which objects are defined: SLOTS_PER_EPOCH, LMD, GHOST?

Terms

EIP 7045
The public text titled Increase max attestation inclusion slot.
Final
The document's own label for how finished the text is. It is not a market fact.

The problem the paper names

A consensus change that is only described in a client does not tell an outside verifier what must be true.

What the design proposes

  • Increases max attestation inclusion slot from attestation.slot + SLOTS_PER_EPOCH to the last slot of epoch N+1 where N is the epoch containing the attestation slot.
  • This increase is critical to the current LMD-GHOST security analysis as well as the confirmation rule.
  • Attestations can currently be included after some minimum delay (1 slot on mainnet) up until SLOTS_PER_EPOCH slots after the slot the attestation was created in.

How the mechanism is specified

  • Taken from the specification, the next constraint is: This increase is critical to the current LMD-GHOST security analysis as well as the confirmation rule.
  • Locate SLOTS_PER_EPOCH, LMD, GHOST in EIP 7045 and apply it to one transaction or call.
  • Then check the failure the class of rule always has: a node that did not upgrade, a reverted call, a replayed signature, or a peer that does not speak the message.

What this page does not treat as proven

  • Final in the EIP process is not finality of a checkpoint.
  • Parameter choices in one release are not the proof.
  • The source marks this final. That is a statement about the text, not a promise that every wallet or node has shipped it.

Why a venture studio still reads it

Use EIP 7045 when a pitch says 'Increase max attestation inclusion slot' without saying whether the rule is consensus, policy, or an interface. The number is the citation. The pitch is not.

This is Blockchain Lab's reading of a public design paper. It is not the paper, not a copy of it, and not an offer of tokens, equity, custody or a partnership. Later network behaviour can diverge from the text. Nothing here is investment, legal or technical advice.

Research status: Design paper. Last reviewed: 1 October 2026. This is a reading of a public paper, not investment, legal or security advice.