Pith Number

pith:7M2DYC7A

pith:2022:7M2DYC7AF5YNFKWEF3A7TFL3WP

not attested not anchored not stored refs pending

Auto-active Verification of Graph Algorithms, Written in OCaml

Daniel Castanho, M\'ario Pereira

arxiv:2207.09854 v1 · 2022-07-20 · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7M2DYC7AF5YNFKWEF3A7TFL3WP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Unfolding Iterators: Specification and Verification of Higher-Order Iterators, in OCaml

Receipt and verification

First computed	2026-07-05T04:42:02.551774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb343c0be02f70d2aac42ec1f9957bb3dbdce358a19c05ee702c2b8eab7d8e70

Aliases

arxiv: 2207.09854 · arxiv_version: 2207.09854v1 · doi: 10.48550/arxiv.2207.09854 · pith_short_12: 7M2DYC7AF5YN · pith_short_16: 7M2DYC7AF5YNFKWE · pith_short_8: 7M2DYC7A

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7M2DYC7AF5YNFKWEF3A7TFL3WP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fb343c0be02f70d2aac42ec1f9957bb3dbdce358a19c05ee702c2b8eab7d8e70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9e5d6d2a7037c81574c31f1fd6b358753d798d881e567ee9e09099561bc8588",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2022-07-20T12:39:34Z",
    "title_canon_sha256": "3dbf00be6a9596bada5254d03a1d03c44ca7364ab14a7840c97041ba22515003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.09854",
    "kind": "arxiv",
    "version": 1
  }
}