Pith Number

pith:DQEQ4SBX

pith:2026:DQEQ4SBX727EZERAENJ6KDVZOP

not attested not anchored not stored refs pending

Tree Containment Parameterized by Scanwidth

Leo van Iersel, Mark Jones, Mathias Weller

arxiv:2605.31071 v1 · 2026-05-29 · cs.DS · cs.CC · 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{DQEQ4SBX727EZERAENJ6KDVZOP}

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	2026-06-01T01:03:34.485158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c090e4837febe4c92202353e50eb973d70003bb3ed1eddea911b11ceeadaf13

Aliases

arxiv: 2605.31071 · arxiv_version: 2605.31071v1 · doi: 10.48550/arxiv.2605.31071 · pith_short_12: DQEQ4SBX727E · pith_short_16: DQEQ4SBX727EZERA · pith_short_8: DQEQ4SBX

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/DQEQ4SBX727EZERAENJ6KDVZOP \
  | 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: 1c090e4837febe4c92202353e50eb973d70003bb3ed1eddea911b11ceeadaf13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b0a9bb5dee03aaf6bfff73330944fa23385772eb58d657cda6a96108f90f902",
    "cross_cats_sorted": [
      "cs.CC",
      "q-bio.PE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-05-29T09:38:57Z",
    "title_canon_sha256": "21a92d82d5b98bf31665e08ce63f00d535629078633a4624705ad53ab0abb2bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.31071",
    "kind": "arxiv",
    "version": 1
  }
}