Pith Number

pith:GQ2HKKUM

pith:2018:GQ2HKKUMQQWSGG2KIFSM7UYLEO

not attested not anchored not stored refs pending

On the Subnet Prune and Regraft Distance

Jonathan Klawitter, Simone Linz

arxiv:1805.07839 v2 · 2018-05-20 · math.CO · cs.DM · 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{GQ2HKKUMQQWSGG2KIFSM7UYLEO}

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	2026-05-17T23:49:17.656162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3434752a8c842d231b4a4164cfd30b23b106f82e2afb42ee65eb499e38a9dadc

Aliases

arxiv: 1805.07839 · arxiv_version: 1805.07839v2 · doi: 10.48550/arxiv.1805.07839 · pith_short_12: GQ2HKKUMQQWS · pith_short_16: GQ2HKKUMQQWSGG2K · pith_short_8: GQ2HKKUM

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/GQ2HKKUMQQWSGG2KIFSM7UYLEO \
  | 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: 3434752a8c842d231b4a4164cfd30b23b106f82e2afb42ee65eb499e38a9dadc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa7f31e7e4955804d6a52ea744ca3137745552e08cf6207df666d1d582992838",
    "cross_cats_sorted": [
      "cs.DM",
      "q-bio.PE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-20T23:25:28Z",
    "title_canon_sha256": "ba11435803d9ef79b06aadd7ff1b222ffc9d3c1bb52dbac6f8600f5f941bc435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07839",
    "kind": "arxiv",
    "version": 2
  }
}