Pith Number

pith:XRQEVDO2

pith:2015:XRQEVDO2TBTHFAQCN4D62MOK2W

not attested not anchored not stored refs pending

The Logic of Counting Query Answers

Hubie Chen, Stefan Mengel

arxiv:1501.07195 v3 · 2015-01-28 · cs.LO · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XRQEVDO2TBTHFAQCN4D62MOK2W}

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	2026-05-18T00:46:04.718446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc604a8dda98667282026f07ed31cad589f35aea56a5dbbfa6b4f65833853901

Aliases

arxiv: 1501.07195 · arxiv_version: 1501.07195v3 · doi: 10.48550/arxiv.1501.07195 · pith_short_12: XRQEVDO2TBTH · pith_short_16: XRQEVDO2TBTHFAQC · pith_short_8: XRQEVDO2

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/XRQEVDO2TBTHFAQCN4D62MOK2W \
  | 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: bc604a8dda98667282026f07ed31cad589f35aea56a5dbbfa6b4f65833853901

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ee242a22fa25b3b0fd16b16ea3b514937b548d1b5366c9c2659f8254fe86490",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-01-28T17:02:31Z",
    "title_canon_sha256": "fb1516cad01101948dfea45b77e63842b35f4c50c2c93d99c6e9314f075fc5b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07195",
    "kind": "arxiv",
    "version": 3
  }
}