Encode chain id with transaction hash

The five-minute read

One action, walked through

1. Open ERC 7950 and read the status line before the examples.
2. Write down the rule in one sentence. A fair version of that sentence is: This standard proposes a way to encode the combination of a chain ID and a transaction hash into one string.
3. Name the object that changes: MUST.
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 has to be true

• You are implementing ERC 7950 at the status the text itself states: Final.
• The object that has to change is MUST. A neighbouring document with a similar name is not this one.
• Status in the header is not adoption.

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 must an implementation of Encode chain id with transaction hash accept, and what may it ignore?
• Is this consensus, peer policy, or an application interface?
• Which names does the text pin down: MUST?

Terms

ERC 7950

The public text titled Encode chain id with transaction hash.

Final

The document's own label for how finished the text is. It is not a market fact.

The problem the paper names

An interface that is only a name in a repository will be re-implemented differently by every team, which is how shared contracts break.

What the design proposes

• This standard proposes a way to encode the combination of a chain ID and a transaction hash into one string.
• Looking up a transaction by its hash always requires the context of the chain - a transaction hash alone is not enough to identify the used chain.
• If the chain information is included in the string itself, finding the right chain for the transaction is easy.

How the mechanism is specified

• Taken from the specification, the next constraint is: Looking up a transaction by its hash always requires the context of the chain - a transaction hash alone is not enough to identify the used chain.
• Locate MUST in ERC 7950 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

• This document does not set a fee, a valuation, or a security proof.
• Status in the header is not adoption.
• 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 ERC 7950 when a pitch says 'Encode chain id with transaction hash' without saying whether the rule is consensus, policy, or an interface. The number is the citation. The pitch is not.