Pith Number

pith:PEWN5J4B

pith:2014:PEWN5J4BHIZ6JCNKTKAG6TZE3A

not attested not anchored not stored refs pending

Quantifying MCMC Exploration of Phylogenetic Tree Space

Christopher Whidden, Frederick A. Matsen IV

arxiv:1405.2120 v2 · 2014-05-08 · 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{PEWN5J4BHIZ6JCNKTKAG6TZE3A}

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	2026-05-18T02:39:55.512422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

792cdea7813a33e489aa9a806f4f24d82cf5ef580c06ccc4260d304ec9c6816b

Aliases

arxiv: 1405.2120 · arxiv_version: 1405.2120v2 · doi: 10.48550/arxiv.1405.2120 · pith_short_12: PEWN5J4BHIZ6 · pith_short_16: PEWN5J4BHIZ6JCNK · pith_short_8: PEWN5J4B

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/PEWN5J4BHIZ6JCNKTKAG6TZE3A \
  | 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: 792cdea7813a33e489aa9a806f4f24d82cf5ef580c06ccc4260d304ec9c6816b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dd9ab79750465cd67dd4e036a2fe89c1177172448eb6e663692f12867e34dda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-05-08T23:03:35Z",
    "title_canon_sha256": "7697f6fcc400aa0d9dfc3812634486f3952cc6a0f01098ddde52504b5fcb6442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2120",
    "kind": "arxiv",
    "version": 2
  }
}