Pith Number

pith:MQMZOMAD

pith:2020:MQMZOMADPBAOK33XFFCMC2LXAK

not attested not anchored not stored refs pending

The combinatorial equivalence of a computability theoretic question

Lu Liu

arxiv:2012.13588 v1 · 2020-12-25 · math.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQMZOMADPBAOK33XFFCMC2LXAK}

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.

Cited by

1 paper in Pith

Enhancing Factual Accuracy and Citation Generation in LLMs via Multi-Stage Self-Verification

Receipt and verification

First computed	2026-07-05T02:02:11.191885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64199730037840e56f772944c1697702a075eb26312bd536b769d2e006be7f96

Aliases

arxiv: 2012.13588 · arxiv_version: 2012.13588v1 · doi: 10.48550/arxiv.2012.13588 · pith_short_12: MQMZOMADPBAO · pith_short_16: MQMZOMADPBAOK33X · pith_short_8: MQMZOMAD

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/MQMZOMADPBAOK33XFFCMC2LXAK \
  | 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: 64199730037840e56f772944c1697702a075eb26312bd536b769d2e006be7f96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd96d5b51a9a9dcb810929b9403033fd0abbb5a2bf8296cb60a274e87e7de3d7",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2020-12-25T15:04:46Z",
    "title_canon_sha256": "b1f5c984dc67f623eac3b4b6517cece430207c4b3cfd9bc79ce2199c56333256"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.13588",
    "kind": "arxiv",
    "version": 1
  }
}