Pith Number

pith:FBRV4OH5

pith:2019:FBRV4OH53GP3EXKEBSLFH4WVJN

not attested not anchored not stored refs pending

Domination above r-independence: does sparseness help?

Carl Einarson, Felix Reidl

arxiv:1906.09180 v1 · 2019-06-21 · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBRV4OH53GP3EXKEBSLFH4WVJN}

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	2026-05-17T23:42:44.265539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28635e38fdd99fb25d440c9653f2d54b768c0fceeee602e0464bd229a288e7e1

Aliases

arxiv: 1906.09180 · arxiv_version: 1906.09180v1 · doi: 10.48550/arxiv.1906.09180 · pith_short_12: FBRV4OH53GP3 · pith_short_16: FBRV4OH53GP3EXKE · pith_short_8: FBRV4OH5

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/FBRV4OH53GP3EXKEBSLFH4WVJN \
  | 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: 28635e38fdd99fb25d440c9653f2d54b768c0fceeee602e0464bd229a288e7e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9588558be6f0c002eed4198d2ddda9d822f8c91373ea9cd07db26c44b2641783",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-06-21T15:04:16Z",
    "title_canon_sha256": "28effd79802a5b0aa53ab00278787b1fd569c3233519f382ba87c5e38d8c9bf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09180",
    "kind": "arxiv",
    "version": 1
  }
}