Pith Number

pith:3WOX2L7R

pith:2019:3WOX2L7RIFGUCNH2J5HRM24TMI

not attested not anchored not stored refs pending

Most vital segment barriers

Frank Staals, Irina Kostitsyna, Maarten L\"offler, Valentin Polishchuk

arxiv:1905.01185 v1 · 2019-05-03 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3WOX2L7RIFGUCNH2J5HRM24TMI}

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	2026-05-17T23:47:06.568680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd9d7d2ff1414d4134fa4f4f166b936200907680b9088e7cf324218dfe0b8b2e

Aliases

arxiv: 1905.01185 · arxiv_version: 1905.01185v1 · doi: 10.48550/arxiv.1905.01185 · pith_short_12: 3WOX2L7RIFGU · pith_short_16: 3WOX2L7RIFGUCNH2 · pith_short_8: 3WOX2L7R

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/3WOX2L7RIFGUCNH2J5HRM24TMI \
  | 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: dd9d7d2ff1414d4134fa4f4f166b936200907680b9088e7cf324218dfe0b8b2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfeb71c13ace7164ddd5afa943eacefd515d44ccac5aab10a8055b7fa5091adb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-05-03T13:51:12Z",
    "title_canon_sha256": "411791c43d239f040b011d7af2e15597bb05750cbd29758717ec34e5cb10c1c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01185",
    "kind": "arxiv",
    "version": 1
  }
}