Pith Number

pith:LJFJIBD4

pith:2010:LJFJIBD43UFGIQT46VTPZCFNS4

not attested not anchored not stored refs pending

Fast error-tolerant quartet phylogeny algorithms

Daniel G. Brown, Jakub Truszkowski

arxiv:1010.1866 v1 · 2010-10-09 · q-bio.PE · cs.CE · 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{LJFJIBD43UFGIQT46VTPZCFNS4}

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	2026-05-18T04:39:30.194240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a4a94047cdd0a64427cf566fc88ad972e39ebed96ec53530edff8db847f1247

Aliases

arxiv: 1010.1866 · arxiv_version: 1010.1866v1 · doi: 10.48550/arxiv.1010.1866 · pith_short_12: LJFJIBD43UFG · pith_short_16: LJFJIBD43UFGIQT4 · pith_short_8: LJFJIBD4

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/LJFJIBD43UFGIQT46VTPZCFNS4 \
  | 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: 5a4a94047cdd0a64427cf566fc88ad972e39ebed96ec53530edff8db847f1247

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26fb0605c97a4916ca50cc0f8d4fdab7183ebaf20713ca5db67502cc1db09072",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-10-09T19:16:55Z",
    "title_canon_sha256": "453b3fd779d01f64728238953b0a2bc4caec6be7d85b30bb3ea7957545f8bbd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1866",
    "kind": "arxiv",
    "version": 1
  }
}