# Hash functions

`kaal:entity:hash-functions`

**Status.** derived

This node is assembled mechanically from the 2 claims that carry the concept tag `hash-functions`. It is a roster of what the corpus says under this term. It is **not** an adjudicated definition: no single statement here has been ruled canonical, and no first-appearance call has been made. Read the claims and judge for yourself.

## Every claim under this term

2 claims across 1 works, 2021 to 2021.

**2021**

- [3782198-028](https://wulfkaal.github.io/claims/3782198-028) [mechanism/argued] -- Hash functions let a leaderless network reach consensus on identity and ordering, because every node independently hashes a transaction's data and deterministically arrives at the same unique identifier that everyone recognizes.
  > Thanks to the hash function, every node in the network hashes the transaction's data and independently arrives at the same an- swer, giving the transaction a unique ID that everyone recognizes.
  Craig Calcaterra, Wulf A. Kaal, Contemporary Decentralization (2021). SSRN: https://ssrn.com/abstract=3782198
- [3782198-029](https://wulfkaal.github.io/claims/3782198-029) [mechanism/argued] -- A blockchain is immutable because any attempt to edit an old block changes the hash of that information and is immediately rejected by the network that follows the protocol.
  > The blockchain is immutable, because any attempt to edit the old blocks will be immediately rejected by the network. A single number or letter changed anywhere in its entire history will result in a different hash of the information.
  Craig Calcaterra, Wulf A. Kaal, Contemporary Decentralization (2021). SSRN: https://ssrn.com/abstract=3782198

## Verify

Every claim above resolves to a record carrying a verbatim source quote, the sha256 of the source PDF, and a preformatted citation. Nothing here asks to be taken on trust.

    curl -s https://wulfkaal.github.io/entities/hash-functions.md | sha256sum

**Canonical form.** This markdown file is the canonical hashed representation of this entity node. Its sha256 is the content hash.