Pith Number

pith:5FP2M6GG

pith:2016:5FP2M6GGWA4YUX5WCVA7BALGWZ

not attested not anchored not stored refs pending

Alternating Set Quantifiers in Modal Logic

Fabian Reiter

arxiv:1602.08971 v1 · 2016-02-29 · cs.LO · cs.FL · 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{5FP2M6GGWA4YUX5WCVA7BALGWZ}

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	2026-05-18T01:19:51.578993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e95fa678c6b0398a5fb61541f08166b662ab0d12d6ef67f13f9cd5b7e3ee62ee

Aliases

arxiv: 1602.08971 · arxiv_version: 1602.08971v1 · doi: 10.48550/arxiv.1602.08971 · pith_short_12: 5FP2M6GGWA4Y · pith_short_16: 5FP2M6GGWA4YUX5W · pith_short_8: 5FP2M6GG

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/5FP2M6GGWA4YUX5WCVA7BALGWZ \
  | 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: e95fa678c6b0398a5fb61541f08166b662ab0d12d6ef67f13f9cd5b7e3ee62ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "011cfb01fbf3b4b54546b96b5c2516ff8b27834cbb8a999be432240d258356b9",
    "cross_cats_sorted": [
      "cs.FL",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-02-29T14:16:31Z",
    "title_canon_sha256": "c450fb7e7cb3959437837a2cb61d64bbf7daff91fce4e3bcaf549c4544bcd293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08971",
    "kind": "arxiv",
    "version": 1
  }
}