Pith Number

pith:HHG72TL5

pith:2015:HHG72TL5W7BVTYSADNPKC2F47W

not attested not anchored not stored refs pending

Efficient Quartet Representations of Trees and Applications to Supertree and Summary Methods

Joseph Rusinko, MaLyn Lawhorn, Noah Weber, Ruth Davidson

arxiv:1512.05302 v3 · 2015-12-16 · 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{HHG72TL5W7BVTYSADNPKC2F47W}

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	2026-05-18T00:55:52.137666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39cdfd4d7db7c359e2401b5ea168bcfd9fe4c4c209384dd411267aa1555f3abc

Aliases

arxiv: 1512.05302 · arxiv_version: 1512.05302v3 · doi: 10.48550/arxiv.1512.05302 · pith_short_12: HHG72TL5W7BV · pith_short_16: HHG72TL5W7BVTYSA · pith_short_8: HHG72TL5

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/HHG72TL5W7BVTYSADNPKC2F47W \
  | 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: 39cdfd4d7db7c359e2401b5ea168bcfd9fe4c4c209384dd411267aa1555f3abc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe34fcdb79081a94fd672de9373e8ca941cbb4d4978be039c85c9600f762cf51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-12-16T19:51:35Z",
    "title_canon_sha256": "7446d7558c475b44c778e4a23435be9c4e36f0e4ee48f6f7c457d7df0130bebd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05302",
    "kind": "arxiv",
    "version": 3
  }
}