Pith Number

pith:HWHY5MGJ

pith:2015:HWHY5MGJ2C74FG2HWRVFAO65BH

not attested not anchored not stored refs pending

RNeXML: a package for reading and writing richly annotated phylogenetic, character, and trait data in R

Carl Boettiger, Hilmar Lapp, Rutger Vos, Scott Chamberlain

arxiv:1506.02722 v1 · 2015-06-08 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWHY5MGJ2C74FG2HWRVFAO65BH}

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	2026-05-18T01:55:41.114827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d8f8eb0c9d0bfc29b47b46a503bdd09f30fe77abf65a0ca473382d4743fdf2b

Aliases

arxiv: 1506.02722 · arxiv_version: 1506.02722v1 · doi: 10.48550/arxiv.1506.02722 · pith_short_12: HWHY5MGJ2C74 · pith_short_16: HWHY5MGJ2C74FG2H · pith_short_8: HWHY5MGJ

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/HWHY5MGJ2C74FG2HWRVFAO65BH \
  | 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: 3d8f8eb0c9d0bfc29b47b46a503bdd09f30fe77abf65a0ca473382d4743fdf2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8580207b118f52a7a9247629bcb0b1d11aab1c20bf80105e14ae0023badb815f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2015-06-08T23:12:26Z",
    "title_canon_sha256": "805baeaab9c631caef38769dec6881368e98fbd0f663d2cf766d527388fe0d2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02722",
    "kind": "arxiv",
    "version": 1
  }
}