Pith Number

pith:ZMKVSBW6

pith:2026:ZMKVSBW6ZQQVI2IKCJ2I7ZYI75

not attested not anchored not stored refs pending

A kernel for the maximum agreement forest problem on multiple binary phylogenetic trees

Leo van Iersel, Ruben Meuwese, Steven Kelk

arxiv:2602.22281 v3 · 2026-02-25 · math.CO · 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{ZMKVSBW6ZQQVI2IKCJ2I7ZYI75}

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	2026-06-12T01:10:19.968551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb155906decc2154690a12748fe708ff7828275b958e36f27f11b305961b20d1

Aliases

arxiv: 2602.22281 · arxiv_version: 2602.22281v3 · doi: 10.48550/arxiv.2602.22281 · pith_short_12: ZMKVSBW6ZQQV · pith_short_16: ZMKVSBW6ZQQVI2IK · pith_short_8: ZMKVSBW6

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/ZMKVSBW6ZQQVI2IKCJ2I7ZYI75 \
  | 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: cb155906decc2154690a12748fe708ff7828275b958e36f27f11b305961b20d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ddec220b8932e33ac35370f35933c0fd4018ce0ad7fae3acdf63b3ff1207dbb",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-02-25T11:20:18Z",
    "title_canon_sha256": "a68788920b08f2d181e5cdbade325dc7f4cd606799c49dd4fce7641e4b2e62a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.22281",
    "kind": "arxiv",
    "version": 3
  }
}