Pith Number

pith:DIK7HKNN

pith:2018:DIK7HKNN6EJSZWFBF63H2EXIOD

not attested not anchored not stored refs pending

Knaster and friends I: Closed colorings and precalibers

Assaf Rinot, Chris Lambie-Hanson

arxiv:1809.08480 v2 · 2018-09-22 · 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{DIK7HKNN6EJSZWFBF63H2EXIOD}

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	2026-05-17T23:59:14.247944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a15f3a9adf1132cd8a12fb67d12e870f6e855142bfcb2e89b797350552e4106

Aliases

arxiv: 1809.08480 · arxiv_version: 1809.08480v2 · doi: 10.48550/arxiv.1809.08480 · pith_short_12: DIK7HKNN6EJS · pith_short_16: DIK7HKNN6EJSZWFB · pith_short_8: DIK7HKNN

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/DIK7HKNN6EJSZWFBF63H2EXIOD \
  | 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: 1a15f3a9adf1132cd8a12fb67d12e870f6e855142bfcb2e89b797350552e4106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1557ddc074c06468b44f9b10ffde241244eaec3d452435a404aad173a833081a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-09-22T19:50:02Z",
    "title_canon_sha256": "63987e43bc99db9ecae702c8a5f5d046c4e1285f224c18a1d47b0a7540ca65ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08480",
    "kind": "arxiv",
    "version": 2
  }
}