Pith Number

pith:TFP6FTO2

pith:2018:TFP6FTO25KZLD6H7IEBXE7AMFF

not attested not anchored not stored refs pending

The probabilities of trees and cladograms under Ford's $\alpha$-model

Arnau Mir, Francesc Rossell\'o, Tom\'as M. Coronado

arxiv:1801.03843 v1 · 2018-01-11 · q-bio.PE · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFP6FTO25KZLD6H7IEBXE7AMFF}

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	2026-05-17T23:50:02.697195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

995fe2cddaeab2b1f8ff4103727c0c296cf98bf1f65c23f5e1f781d5e083d09e

Aliases

arxiv: 1801.03843 · arxiv_version: 1801.03843v1 · doi: 10.48550/arxiv.1801.03843 · pith_short_12: TFP6FTO25KZL · pith_short_16: TFP6FTO25KZLD6H7 · pith_short_8: TFP6FTO2

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/TFP6FTO25KZLD6H7IEBXE7AMFF \
  | 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: 995fe2cddaeab2b1f8ff4103727c0c296cf98bf1f65c23f5e1f781d5e083d09e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec14e51014a3b87cb80eb8940b6857c834f393a99aa2b340aaa7ef0f12ae9cdf",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2018-01-11T16:07:53Z",
    "title_canon_sha256": "953a5912f2208192615f36f23c17f5abd8efccc8a67b7ec7d1326d9e253fa1b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03843",
    "kind": "arxiv",
    "version": 1
  }
}