Pith Number

pith:PK6UZIXO

pith:2010:PK6UZIXO5JKSBDCQ6TDS2XNVSR

not attested not anchored not stored refs pending

A New Approach to the Small Phylogeny Problem

Bro\v{n}a Brejov\'a, Jakub Kov\'a\v{c}, Tom\'a\v{s} Vina\v{r}

arxiv:1012.0935 v1 · 2010-12-04 · 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{PK6UZIXO5JKSBDCQ6TDS2XNVSR}

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	2026-05-18T02:23:15.819259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7abd4ca2eeea55208c50f4c72d5db5944f73eaa7fdd2ae9fb4b573bbd9034173

Aliases

arxiv: 1012.0935 · arxiv_version: 1012.0935v1 · doi: 10.48550/arxiv.1012.0935 · pith_short_12: PK6UZIXO5JKS · pith_short_16: PK6UZIXO5JKSBDCQ · pith_short_8: PK6UZIXO

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/PK6UZIXO5JKSBDCQ6TDS2XNVSR \
  | 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: 7abd4ca2eeea55208c50f4c72d5db5944f73eaa7fdd2ae9fb4b573bbd9034173

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa5d3238c614192a7ca52f2ef5c65f8d05f7001347b63b1be1cd92581b423f7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-12-04T17:25:18Z",
    "title_canon_sha256": "d6b93eceb9fbabc1839a0cd32ed721586342508453a78fc5f6071a7cb1f137b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0935",
    "kind": "arxiv",
    "version": 1
  }
}