Pith Number

pith:MTZBGSIE

pith:2013:MTZBGSIETSE3XSFWC4ZZDRBBOH

not attested not anchored not stored refs pending

An Arrow-type result for inferring a species tree from gene trees

Mike Steel

arxiv:1307.5147 v1 · 2013-07-19 · 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{MTZBGSIETSE3XSFWC4ZZDRBBOH}

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	2026-05-18T03:18:05.556992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64f21349049c89bbc8b6173391c42171ffe752f5249ccd61a21ad84077618ab9

Aliases

arxiv: 1307.5147 · arxiv_version: 1307.5147v1 · doi: 10.48550/arxiv.1307.5147 · pith_short_12: MTZBGSIETSE3 · pith_short_16: MTZBGSIETSE3XSFW · pith_short_8: MTZBGSIE

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/MTZBGSIETSE3XSFWC4ZZDRBBOH \
  | 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: 64f21349049c89bbc8b6173391c42171ffe752f5249ccd61a21ad84077618ab9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6953b57d6243c8f0c257aa761e4a20bfe7591ca384ec415d22b6639c0e199f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-07-19T07:47:32Z",
    "title_canon_sha256": "4c4882a676560ea1a7d2ed8c9b6d4a8bccfe02ff8c1d19bf50f4dd5cafe08124"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5147",
    "kind": "arxiv",
    "version": 1
  }
}