Pith Number

pith:WY2EIKNZ

pith:2014:WY2EIKNZGEONUGFZ2ST6IJASC7

not attested not anchored not stored refs pending

Classical propositional logic and decidability of variables in intuitionistic propositional logic

Hajime Ishihara (Japan Advanced Institute of Science, Technology)

arxiv:1405.0091 v2 · 2014-05-01 · math.LO · 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{WY2EIKNZGEONUGFZ2ST6IJASC7}

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	2026-05-18T01:37:35.859356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6344429b9311cda18b9d4a7e4241217eafa588e9de8f906fdf568cd73bd1cff

Aliases

arxiv: 1405.0091 · arxiv_version: 1405.0091v2 · doi: 10.48550/arxiv.1405.0091 · pith_short_12: WY2EIKNZGEON · pith_short_16: WY2EIKNZGEONUGFZ · pith_short_8: WY2EIKNZ

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/WY2EIKNZGEONUGFZ2ST6IJASC7 \
  | 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: b6344429b9311cda18b9d4a7e4241217eafa588e9de8f906fdf568cd73bd1cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80128bf74c7e9228a2f6e5bd76964a769368fc2c6dfa70241a749ec2bb3a5bf5",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-05-01T04:32:05Z",
    "title_canon_sha256": "d564509f493b28c3c33622fac00c3af4b27d0b05284075af31b8c01755267495"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0091",
    "kind": "arxiv",
    "version": 2
  }
}