Pith Number

pith:YYAKQ4DJ

pith:2014:YYAKQ4DJWTOELPHNDAI5XPWRO4

not attested not anchored not stored refs pending

The space of ultrametric phylogenetic trees

Alexei J. Drummond, Alex Gavryushkin

arxiv:1410.3544 v5 · 2014-10-14 · math.MG · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYAKQ4DJWTOELPHNDAI5XPWRO4}

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	2026-05-18T01:12:40.683546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c600a87069b4dc45bced1811dbbed17711cf3f77d917ec0706e14313ad8cae41

Aliases

arxiv: 1410.3544 · arxiv_version: 1410.3544v5 · doi: 10.48550/arxiv.1410.3544 · pith_short_12: YYAKQ4DJWTOE · pith_short_16: YYAKQ4DJWTOELPHN · pith_short_8: YYAKQ4DJ

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/YYAKQ4DJWTOELPHNDAI5XPWRO4 \
  | 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: c600a87069b4dc45bced1811dbbed17711cf3f77d917ec0706e14313ad8cae41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b99402236ad53d22658b92f245ae6020e1b7d4ff45d48509c62c363bb6c41118",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-10-14T00:47:18Z",
    "title_canon_sha256": "d95b6a373427e9ffec806e07f3761d91e75eb33806e0c77943241c7569e434d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.3544",
    "kind": "arxiv",
    "version": 5
  }
}