Pith Number

pith:OFUPZTUB

pith:2019:OFUPZTUBSRBKQ7GZ3PXA3ELZIM

not attested not anchored not stored refs pending

Tree-metrizable HGT networks

Andrew Francis, Michael Hendriksen

arxiv:1908.08647 v1 · 2019-08-23 · q-bio.PE · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFUPZTUBSRBKQ7GZ3PXA3ELZIM}

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	2026-07-04T23:59:16.476833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7168fcce819442a87cd9dbee0d9179430b310cd4b8a777cf9e21c55f590ee841

Aliases

arxiv: 1908.08647 · arxiv_version: 1908.08647v1 · doi: 10.48550/arxiv.1908.08647 · pith_short_12: OFUPZTUBSRBK · pith_short_16: OFUPZTUBSRBKQ7GZ · pith_short_8: OFUPZTUB

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/OFUPZTUBSRBKQ7GZ3PXA3ELZIM \
  | 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: 7168fcce819442a87cd9dbee0d9179430b310cd4b8a777cf9e21c55f590ee841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eaa7a024d51d0f5de7ef5219e57b65366722a4878af58dfc9316b4b8d9dc40d",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-08-23T03:15:07Z",
    "title_canon_sha256": "1b0978f2ff8f76b70402137380c480577438c9af63e2cf12ff9e3b24db0e087e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08647",
    "kind": "arxiv",
    "version": 1
  }
}