Pith Number

pith:2DBXMDCR

pith:2012:2DBXMDCRKNB4BDT256TBOIMZKD

not attested not anchored not stored refs pending

The impact and interplay of long and short branches on phylogenetic information content

Iain Martyn, Mike Steel

arxiv:1206.3031 v2 · 2012-06-14 · q-bio.QM · 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{2DBXMDCRKNB4BDT256TBOIMZKD}

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	2026-05-18T03:50:50.013097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0c3760c515343c08e7aefa617219950d6fb272f1236ab81c309902527019169

Aliases

arxiv: 1206.3031 · arxiv_version: 1206.3031v2 · doi: 10.48550/arxiv.1206.3031 · pith_short_12: 2DBXMDCRKNB4 · pith_short_16: 2DBXMDCRKNB4BDT2 · pith_short_8: 2DBXMDCR

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/2DBXMDCRKNB4BDT256TBOIMZKD \
  | 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: d0c3760c515343c08e7aefa617219950d6fb272f1236ab81c309902527019169

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae19c4d000d2524f4fd752b1a1feb7622ffa7e0532957cef95daf134b7870b81",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2012-06-14T08:17:15Z",
    "title_canon_sha256": "95d090056f52da2ad352030d8db7890ccd74019a8706133605cb375ae15b6655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3031",
    "kind": "arxiv",
    "version": 2
  }
}