Pith Number

pith:6XVFZGRH

pith:2014:6XVFZGRHKVZB4MC33QVOCECHD3

not attested not anchored not stored refs pending

Decidable fragments of the Simple Theory of Types with Infinity and NF

Anuj Dawar, Thomas Forster, Zachiri McKenzie

arxiv:1406.4384 v1 · 2014-06-17 · math.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{6XVFZGRHKVZB4MC33QVOCECHD3}

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	2026-05-18T00:32:45.301421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5ea5c9a2755721e305bdc2ae110471ec285d7fa7cae0e51827c08a12816d451

Aliases

arxiv: 1406.4384 · arxiv_version: 1406.4384v1 · doi: 10.48550/arxiv.1406.4384 · pith_short_12: 6XVFZGRHKVZB · pith_short_16: 6XVFZGRHKVZB4MC3 · pith_short_8: 6XVFZGRH

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/6XVFZGRHKVZB4MC33QVOCECHD3 \
  | 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: f5ea5c9a2755721e305bdc2ae110471ec285d7fa7cae0e51827c08a12816d451

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62fc60167b4e583b8f88ab28c0804a98383fe9df340eb1c7925fbde26fcc7668",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-06-17T14:34:35Z",
    "title_canon_sha256": "cea1a8ce501ab10ef352f8d7b9bf3970e500834475f7e98f6e2ff095f48958e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4384",
    "kind": "arxiv",
    "version": 1
  }
}