Pith Number

pith:4GJANE34

pith:2018:4GJANE34GQDKA7VPHWKULVUOOG

not attested not anchored not stored refs pending

Multi-type display calculus for Propositional Dynamic Logic

Alessandra Palmigiano, Alexander Kurz, Giuseppe Greco, Sabine Frittella

arxiv:1805.09144 v1 · 2018-05-18 · 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{4GJANE34GQDKA7VPHWKULVUOOG}

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	2026-05-18T00:15:08.419078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e19206937c3406a07eaf3d9545d68e71b12a0693df4f34e15fda97477bf3d7eb

Aliases

arxiv: 1805.09144 · arxiv_version: 1805.09144v1 · doi: 10.48550/arxiv.1805.09144 · pith_short_12: 4GJANE34GQDK · pith_short_16: 4GJANE34GQDKA7VP · pith_short_8: 4GJANE34

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/4GJANE34GQDKA7VPHWKULVUOOG \
  | 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: e19206937c3406a07eaf3d9545d68e71b12a0693df4f34e15fda97477bf3d7eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef42b28776918d4879746526f3b8012fb0aad8b498d1930158c351d2ac378ee5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-05-18T22:56:53Z",
    "title_canon_sha256": "f1faa2885af1a0a2b682f7ff0d665cfd3459313b8ebe9e9e6a3b0ca7e33b1a32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09144",
    "kind": "arxiv",
    "version": 1
  }
}