Pith Number

pith:KP7OX6P6

pith:2020:KP7OX6P6D6JESDDV2XEHRSI4JR

not attested not anchored not stored refs pending

Minimisation in Logical Form

Alexandra Silva, Clemens Kupke, Dexter Kozen, Helle Hvid Hansen, Marcello Bonsangue, Nick Bezhanishvili, Prakash Panangaden

arxiv:2005.11551 v1 · 2020-05-23 · cs.FL · 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{KP7OX6P6D6JESDDV2XEHRSI4JR}

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.

Receipt and verification

First computed	2026-07-05T01:05:15.657671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53feebf9fe1f92490c75d5c878c91c4c50a918892235b13b22a23ed12b677572

Aliases

arxiv: 2005.11551 · arxiv_version: 2005.11551v1 · doi: 10.48550/arxiv.2005.11551 · pith_short_12: KP7OX6P6D6JE · pith_short_16: KP7OX6P6D6JESDDV · pith_short_8: KP7OX6P6

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/KP7OX6P6D6JESDDV2XEHRSI4JR \
  | 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: 53feebf9fe1f92490c75d5c878c91c4c50a918892235b13b22a23ed12b677572

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6f28213124d1f08d939c7873165681c82d9e6fe99b919b9f406a8e88bb4e29",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2020-05-23T15:19:57Z",
    "title_canon_sha256": "481781a4d600d9a0e262a709f759481d922cd8d1c7d0a0130bc4e7cabf441408"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.11551",
    "kind": "arxiv",
    "version": 1
  }
}