Pith Number

pith:565MTD56

pith:2002:565MTD566WSAQTFS5AMPKL4KZT

not attested not anchored not stored refs pending

Decidability of quantified propositional intuitionistic logic and S4 on trees

Richard Zach

arxiv:math/0203113 v2 · 2002-03-12 · 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{565MTD566WSAQTFS5AMPKL4KZT}

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	2026-05-18T02:18:24.176803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efbac98fbef5a4084cb2e818f52f8acce3f71017f674b16037ffef3e0f9eaedc

Aliases

arxiv: math/0203113 · arxiv_version: math/0203113v2 · doi: 10.48550/arxiv.math/0203113 · pith_short_12: 565MTD566WSA · pith_short_16: 565MTD566WSAQTFS · pith_short_8: 565MTD56

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/565MTD566WSAQTFS5AMPKL4KZT \
  | 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: efbac98fbef5a4084cb2e818f52f8acce3f71017f674b16037ffef3e0f9eaedc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "234a4859661781a782ced768a81a63d6b8f2e02ce6a6f5502beb60605869eec4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "2002-03-12T19:43:40Z",
    "title_canon_sha256": "ef4033ea7c6442c931ded9636ad0e9ee03075911f9e4c6a4d92f259557c5b7a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0203113",
    "kind": "arxiv",
    "version": 2
  }
}