Pith Number

pith:IHEUSRKF

pith:2018:IHEUSRKFJ5WCVRTXXQ2ABUIGMX

not attested not anchored not stored refs pending

Decidable fragments of first-order modal logics with counting quantifiers over varying domains

Christopher Hampson

arxiv:1812.06341 v1 · 2018-12-15 · 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{IHEUSRKFJ5WCVRTXXQ2ABUIGMX}

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	2026-05-17T23:58:10.520709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41c94945454f6c2ac677bc3400d10665e1f5cf1b9632452d03112b4393160eed

Aliases

arxiv: 1812.06341 · arxiv_version: 1812.06341v1 · doi: 10.48550/arxiv.1812.06341 · pith_short_12: IHEUSRKFJ5WC · pith_short_16: IHEUSRKFJ5WCVRTX · pith_short_8: IHEUSRKF

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/IHEUSRKFJ5WCVRTXXQ2ABUIGMX \
  | 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: 41c94945454f6c2ac677bc3400d10665e1f5cf1b9632452d03112b4393160eed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4460a4bee1e8f0238777fe5d794188e7d235c313dea288ced9155e8f3e7d7033",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-12-15T19:37:14Z",
    "title_canon_sha256": "04aff0b982101373186a6d229696dbc0c8699c7e4fe533f8a9dfae79f157e0e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06341",
    "kind": "arxiv",
    "version": 1
  }
}