Pith Number

pith:A2FICJ4Z

pith:2018:A2FICJ4ZA5JS4DGCBBO5VEBAJZ

not attested not anchored not stored refs pending

On the semilattice of modal operators and decompositions of the discriminator

Ewa Or{\l}owska, Ivo D\"untsch, Wojciech Dzik

arxiv:1805.11891 v1 · 2018-05-30 · 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{A2FICJ4ZA5JS4DGCBBO5VEBAJZ}

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	2026-05-18T00:14:35.921734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

068a81279907532e0cc2085dda90204e6ff670ea7f708f71e642bb5663739a62

Aliases

arxiv: 1805.11891 · arxiv_version: 1805.11891v1 · doi: 10.48550/arxiv.1805.11891 · pith_short_12: A2FICJ4ZA5JS · pith_short_16: A2FICJ4ZA5JS4DGC · pith_short_8: A2FICJ4Z

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/A2FICJ4ZA5JS4DGCBBO5VEBAJZ \
  | 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: 068a81279907532e0cc2085dda90204e6ff670ea7f708f71e642bb5663739a62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63a3798c46bd299844dff3769f4973c7e99415eff013a20eaca8a22ba9b63dee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-05-30T10:30:18Z",
    "title_canon_sha256": "8c590415c0ac8d7051f4c8785ee4d4a90086dac0347ca7389e168b8d0b1adbc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11891",
    "kind": "arxiv",
    "version": 1
  }
}