Pith Number

pith:6YYXHQX2

pith:2014:6YYXHQX2ZU62SXLK6OEANRG4X6

not attested not anchored not stored refs pending

Semialgebraic Graphs having Countable List-Chromatic Numbers

James H. Schmerl

arxiv:1405.4814 v2 · 2014-05-19 · 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{6YYXHQX2ZU62SXLK6OEANRG4X6}

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	2026-05-18T02:03:52.869480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f63173c2facd3da95d6af38806c4dcbf8acc313ae82b248c95f20a3911d01d32

Aliases

arxiv: 1405.4814 · arxiv_version: 1405.4814v2 · doi: 10.48550/arxiv.1405.4814 · pith_short_12: 6YYXHQX2ZU62 · pith_short_16: 6YYXHQX2ZU62SXLK · pith_short_8: 6YYXHQX2

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/6YYXHQX2ZU62SXLK6OEANRG4X6 \
  | 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: f63173c2facd3da95d6af38806c4dcbf8acc313ae82b248c95f20a3911d01d32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7e3ceb74cc28050d1d8972dd0fe671a894fc405548652cf0e500035c696bcad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-19T17:34:23Z",
    "title_canon_sha256": "05266ce0976f7fd41164b136300133bc68541e68ab0457ce8e2f47cd5a0bf8cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4814",
    "kind": "arxiv",
    "version": 2
  }
}