Pith Number

pith:J6KPTHEN

pith:2014:J6KPTHENVV2PMHPDTJSIETX5D7

not attested not anchored not stored refs pending

The square of opposition in orthomodular logic

Christian de Ronde, Graciela Domenech, Hector Freytes

arxiv:1404.5888 v1 · 2014-04-23 · quant-ph · 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{J6KPTHENVV2PMHPDTJSIETX5D7}

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	2026-05-18T02:53:27.620757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f94f99c8dad74f61de39a64824efd1fc695dee50fc87da8066eb36e74725da1

Aliases

arxiv: 1404.5888 · arxiv_version: 1404.5888v1 · doi: 10.48550/arxiv.1404.5888 · pith_short_12: J6KPTHENVV2P · pith_short_16: J6KPTHENVV2PMHPD · pith_short_8: J6KPTHEN

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/J6KPTHENVV2PMHPDTJSIETX5D7 \
  | 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: 4f94f99c8dad74f61de39a64824efd1fc695dee50fc87da8066eb36e74725da1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76cb16271488f72da5c47da60df7346e4e943b730c6588233d93eadb5cd578cd",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-23T16:52:16Z",
    "title_canon_sha256": "7774e67b8e46c5c03bcd3356f6cbbedd59a82e0805d64ced866d8c775f341e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5888",
    "kind": "arxiv",
    "version": 1
  }
}