Pith Number

pith:PULDRUTI

pith:2016:PULDRUTIGLR5BG4KONC2IZUF2P

not attested not anchored not stored refs pending

Deciding the Chromatic Numbers of Algebraic Hypergrahs

James H. Schmerl

arxiv:1607.01377 v1 · 2016-07-05 · 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{PULDRUTIGLR5BG4KONC2IZUF2P}

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	2026-05-18T01:11:27.946650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d1638d26832e3d09b8a7345a46685d3eea71e502d48bcc133ac888070a73514

Aliases

arxiv: 1607.01377 · arxiv_version: 1607.01377v1 · doi: 10.48550/arxiv.1607.01377 · pith_short_12: PULDRUTIGLR5 · pith_short_16: PULDRUTIGLR5BG4K · pith_short_8: PULDRUTI

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/PULDRUTIGLR5BG4KONC2IZUF2P \
  | 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: 7d1638d26832e3d09b8a7345a46685d3eea71e502d48bcc133ac888070a73514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48ba02744332fe3aa2f6b83b14970055b9e171eb6d1ee41922f57381fca1f696",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-07-05T19:31:28Z",
    "title_canon_sha256": "e1ed15c2a9a9e7b25e80d6bb95901631a986b33fdbd886086b7a4e586cfe1ae5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01377",
    "kind": "arxiv",
    "version": 1
  }
}