Pith Number

pith:XQ2INHRN

pith:2016:XQ2INHRNENUZMQD4XVV7V2PTDJ

not attested not anchored not stored refs pending

Aristotle's square of opposition in the light of Hilbert's epsilon and tau quantifiers

Christian Retor\'e, Fabio Pasquali

arxiv:1606.08326 v1 · 2016-06-27 · 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{XQ2INHRNENUZMQD4XVV7V2PTDJ}

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	2026-05-18T01:11:52.322446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc34869e2d236996407cbd6bfae9f31a7fb194298f205aadd73d26903a9e2c67

Aliases

arxiv: 1606.08326 · arxiv_version: 1606.08326v1 · doi: 10.48550/arxiv.1606.08326 · pith_short_12: XQ2INHRNENUZ · pith_short_16: XQ2INHRNENUZMQD4 · pith_short_8: XQ2INHRN

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/XQ2INHRNENUZMQD4XVV7V2PTDJ \
  | 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: bc34869e2d236996407cbd6bfae9f31a7fb194298f205aadd73d26903a9e2c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec0ed32f599d48af36565232ac2208883d5bded9a6031c7fe66e96eaf29f2755",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-06-27T15:46:44Z",
    "title_canon_sha256": "f520d89a87acb97dba9471caa6f50bd439baede13113ba575be0d5b96becb19e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08326",
    "kind": "arxiv",
    "version": 1
  }
}