Pith Number

pith:IZJCQIAZ

pith:2013:IZJCQIAZAPDR3VS5NWQ7DL65ZW

not attested not anchored not stored refs pending

Kernelizations for the hybridization number problem on multiple nonbinary trees

Celine Scornavacca, Leo van Iersel, Steven Kelk

arxiv:1311.4045 v3 · 2013-11-16 · cs.DM · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZJCQIAZAPDR3VS5NWQ7DL65ZW}

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	2026-05-18T01:18:48.053997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

465228201903c71dd65d6da1f1afddcda6b45572e61dd18d4f941ce20ea53be1

Aliases

arxiv: 1311.4045 · arxiv_version: 1311.4045v3 · doi: 10.48550/arxiv.1311.4045 · pith_short_12: IZJCQIAZAPDR · pith_short_16: IZJCQIAZAPDR3VS5 · pith_short_8: IZJCQIAZ

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/IZJCQIAZAPDR3VS5NWQ7DL65ZW \
  | 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: 465228201903c71dd65d6da1f1afddcda6b45572e61dd18d4f941ce20ea53be1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f14490f5c1ca6b5907c2e6229154d3485797a7e0a56388668b1755fdfe6d7616",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-11-16T10:17:49Z",
    "title_canon_sha256": "7dce32cc2f7b4225221419e7a05066ae2af81ae4706bea3c6766342ded41cde8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4045",
    "kind": "arxiv",
    "version": 3
  }
}