Pith Number

pith:Z4VNKWD4

pith:2015:Z4VNKWD4AJBRDQ47FCXAL7XDHQ

not attested not anchored not stored refs pending

A tree metric using structure and length to capture distinct phylogenetic signals

Caroline Colijn, Michelle Kendall

arxiv:1507.05211 v3 · 2015-07-18 · 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{Z4VNKWD4AJBRDQ47FCXAL7XDHQ}

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	2026-05-18T00:31:52.307829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf2ad5587c024311c39f28ae05fee33c21a9c9728aeb57f31ba4546d193d1c14

Aliases

arxiv: 1507.05211 · arxiv_version: 1507.05211v3 · doi: 10.48550/arxiv.1507.05211 · pith_short_12: Z4VNKWD4AJBR · pith_short_16: Z4VNKWD4AJBRDQ47 · pith_short_8: Z4VNKWD4

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/Z4VNKWD4AJBRDQ47FCXAL7XDHQ \
  | 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: cf2ad5587c024311c39f28ae05fee33c21a9c9728aeb57f31ba4546d193d1c14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e20a7d7c39aafaf5f2cea76ccd8dddca2bbd17e01b704a3f408097ff2407c35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-07-18T18:13:01Z",
    "title_canon_sha256": "25024e215a99bbdb91c6289aeaf0f9bac5d7577018f643d41bf5eb9837460097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05211",
    "kind": "arxiv",
    "version": 3
  }
}