Pith Number

pith:FDZ3D6EV

pith:2022:FDZ3D6EVGQBQFRK6YSIJSEHYCU

not attested not anchored not stored refs pending

A Near-Linear Kernel for Two-Parsimony Distance

Elise Deen, Leo van Iersel, Mark Jones, Norbert Zeh, Remie Janssen, Yuki Murakami

arxiv:2211.00378 v1 · 2022-11-01 · 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{FDZ3D6EVGQBQFRK6YSIJSEHYCU}

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	2026-07-05T05:12:21.792421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28f3b1f895340302c55ec4909910f8151c3be0cbb7d2d69b955470dced3f5e92

Aliases

arxiv: 2211.00378 · arxiv_version: 2211.00378v1 · doi: 10.48550/arxiv.2211.00378 · pith_short_12: FDZ3D6EVGQBQ · pith_short_16: FDZ3D6EVGQBQFRK6 · pith_short_8: FDZ3D6EV

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/FDZ3D6EVGQBQFRK6YSIJSEHYCU \
  | 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: 28f3b1f895340302c55ec4909910f8151c3be0cbb7d2d69b955470dced3f5e92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce81c22b5b5283fc05b862d170c9ff426ce761f1639188e0b2286eb36c9ac64a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-11-01T10:52:06Z",
    "title_canon_sha256": "6901ad74e393c2f9afdaf7f6b1990df329f488287f333d9dfa3046cde8a97b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.00378",
    "kind": "arxiv",
    "version": 1
  }
}