Pith Number

pith:NAHE6ZOU

pith:2013:NAHE6ZOUNDTRAGUDMBIH4SZHO2

not attested not anchored not stored refs pending

Selective but not Ramsey

Timothy Trujillo

arxiv:1312.5411 v1 · 2013-12-19 · 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{NAHE6ZOUNDTRAGUDMBIH4SZHO2}

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	2026-05-18T03:04:14.842829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

680e4f65d468e7101a8360507e4b27768ef705033c2ca82dba79b63763b1334c

Aliases

arxiv: 1312.5411 · arxiv_version: 1312.5411v1 · doi: 10.48550/arxiv.1312.5411 · pith_short_12: NAHE6ZOUNDTR · pith_short_16: NAHE6ZOUNDTRAGUD · pith_short_8: NAHE6ZOU

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/NAHE6ZOUNDTRAGUDMBIH4SZHO2 \
  | 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: 680e4f65d468e7101a8360507e4b27768ef705033c2ca82dba79b63763b1334c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b8b2befd1cc1766bb364564b00d120f8cb771c85ac4baf7766a3d0258056072",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-12-19T05:23:17Z",
    "title_canon_sha256": "4a447f17ec911b5f633accadd5c4000a3dc703fd1fb19dc2ab32599c43c10cf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5411",
    "kind": "arxiv",
    "version": 1
  }
}