Pith Number

pith:XXNB2SHD

pith:2017:XXNB2SHDGFA5QKFMPI7IJGNSU5

not attested not anchored not stored refs pending

Forbidding rank-preserving copies of a poset

Abhishek Methuku, Bal\'azs Patk\'os, D\'aniel Gerbner, D\'aniel T. Nagy, M\'at\'e Vizer

arxiv:1710.09086 v1 · 2017-10-25 · 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{XXNB2SHDGFA5QKFMPI7IJGNSU5}

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	2026-05-18T00:32:00.401777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdda1d48e33141d828ac7a3e8499b2a759e5c1e78fe747091fc1dcafbb4f3f63

Aliases

arxiv: 1710.09086 · arxiv_version: 1710.09086v1 · doi: 10.48550/arxiv.1710.09086 · pith_short_12: XXNB2SHDGFA5 · pith_short_16: XXNB2SHDGFA5QKFM · pith_short_8: XXNB2SHD

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/XXNB2SHDGFA5QKFMPI7IJGNSU5 \
  | 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: bdda1d48e33141d828ac7a3e8499b2a759e5c1e78fe747091fc1dcafbb4f3f63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3354a1aefd3536db7f13e60abbf8777ab98cde6c55ebda1856a8354ca25f7b94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-25T06:49:27Z",
    "title_canon_sha256": "8266b97c00f9a40bcdbf3b165ff7c609213c3d2db9e5008073f5b5e4f63b0ea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09086",
    "kind": "arxiv",
    "version": 1
  }
}