Pith Number

pith:3VDVY6ID

pith:2011:3VDVY6IDYVI5KKQY2JYDP4BHAF

not attested not anchored not stored refs pending

Computably enumerable partial orders

Damir D. Dzhafarov, Noah Schweber, Peter A. Cholak, Richard A. Shore

arxiv:1110.4068 v1 · 2011-10-18 · 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{3VDVY6IDYVI5KKQY2JYDP4BHAF}

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	2026-05-18T04:10:47.423773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd475c7903c551d52a18d27037f02701666a35fbcccc400d9e7d3b9304ab9e42

Aliases

arxiv: 1110.4068 · arxiv_version: 1110.4068v1 · doi: 10.48550/arxiv.1110.4068 · pith_short_12: 3VDVY6IDYVI5 · pith_short_16: 3VDVY6IDYVI5KKQY · pith_short_8: 3VDVY6ID

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/3VDVY6IDYVI5KKQY2JYDP4BHAF \
  | 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: dd475c7903c551d52a18d27037f02701666a35fbcccc400d9e7d3b9304ab9e42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ef2f5dd764c178c03f33b3b820d5ef26ee5a7fb338b622b2771239325fe107c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-10-18T17:44:35Z",
    "title_canon_sha256": "b2cfd6d6c9a99bd62d67c0da28f9e6fff735bc0e4ee76fa3215dd361e184d129"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4068",
    "kind": "arxiv",
    "version": 1
  }
}