Pith Number

pith:2IL7GXJP

pith:2015:2IL7GXJPPAABHCDY4SAEKQOYWA

not attested not anchored not stored refs pending

Efficient recycled algorithms for quantitative trait models on phylogenies

Colin Fox, David Bryant, Gordon Hiscott, Matthew Parry

arxiv:1512.00890 v1 · 2015-12-02 · q-bio.PE · math.PR · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IL7GXJPPAABHCDY4SAEKQOYWA}

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	2026-05-18T01:25:23.910261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d217f35d2f7800138878e4804541d8b0083e16b216772297f5492849c2d0d6fc

Aliases

arxiv: 1512.00890 · arxiv_version: 1512.00890v1 · doi: 10.48550/arxiv.1512.00890 · pith_short_12: 2IL7GXJPPAAB · pith_short_16: 2IL7GXJPPAABHCDY · pith_short_8: 2IL7GXJP

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/2IL7GXJPPAABHCDY4SAEKQOYWA \
  | 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: d217f35d2f7800138878e4804541d8b0083e16b216772297f5492849c2d0d6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37fa3766d9eb0edc36877591076c6c8319a0930b985e97f5cecc903c0c6e14b6",
    "cross_cats_sorted": [
      "math.PR",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-12-02T22:39:32Z",
    "title_canon_sha256": "df385dde4114c6142261887faf678afb00a848a7b3fca791d69b9af4538f8e78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00890",
    "kind": "arxiv",
    "version": 1
  }
}