feat(thegraph): add proof-of-indexing to the types module (#58)

Co-authored-by: Theo Butler <[email protected]>
edgeandnode · Dec 11, 2023 · c90935e · c90935e
1 parent fc272f1
commit c90935e
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Showing 2 changed files with 13 additions and 0 deletions.
diff --git a/thegraph/src/types.rs b/thegraph/src/types.rs
@@ -3,11 +3,13 @@
 pub use attestation::*;
 pub use block_pointer::*;
 pub use deployment_id::*;
+pub use poi::*;
 pub use primitives::*;
 pub use subgraph_id::*;
 
 pub mod attestation;
 pub mod block_pointer;
 pub mod deployment_id;
+pub mod poi;
 mod primitives;
 pub mod subgraph_id;
diff --git a/thegraph/src/types/poi.rs b/thegraph/src/types/poi.rs
@@ -0,0 +1,11 @@
+//! A Proof of Indexing (POI) a cryptographic proof submitted by indexers to demonstrate that they
+//! have accurately indexed a subgraph.
+//!
+//! The POI is essentially a signature over a message digest that is generated during the indexing
+//! of a subgraph from genesis. Each time a subgraph’s state is updated, so does the message digest.
+
+use super::primitives::B256;
+
+/// A Proof of Indexing (POI) a cryptographic proof submitted by indexers to demonstrate that they
+/// have  accurately indexed a subgraph.
+pub type ProofOfIndexing = B256;