Pith Number

pith:4BWDHEDU

pith:2013:4BWDHEDUP2A226GB4A32THP6ET

not attested not anchored not stored refs pending

Fixed-Parameter and Approximation Algorithms for Maximum Agreement Forests of Multifurcating Trees

Chris Whidden, Norbert Zeh, Robert G. Beiko

arxiv:1305.0512 v1 · 2013-05-02 · cs.DS · 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{4BWDHEDUP2A226GB4A32THP6ET}

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	2026-05-18T03:26:40.017900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e06c3390747e81ad78c1e037a99dfe24e37fb87637b42a416c17ddd8fc20bb03

Aliases

arxiv: 1305.0512 · arxiv_version: 1305.0512v1 · doi: 10.48550/arxiv.1305.0512 · pith_short_12: 4BWDHEDUP2A2 · pith_short_16: 4BWDHEDUP2A226GB · pith_short_8: 4BWDHEDU

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/4BWDHEDUP2A226GB4A32THP6ET \
  | 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: e06c3390747e81ad78c1e037a99dfe24e37fb87637b42a416c17ddd8fc20bb03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d87497add6e34cfdf2ecfd87ced8fa37b0833d62cf81d13e10a9442e0d89e3",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-05-02T16:57:48Z",
    "title_canon_sha256": "773bf7070426cf74648dc113d14b6a3830b950b4ecd69ada5b299b93e3287177"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0512",
    "kind": "arxiv",
    "version": 1
  }
}