Pith Number

pith:UL2Q2Q5T

pith:2019:UL2Q2Q5T26VYUNEJJLC2GR34CJ

not attested not anchored not stored refs pending

Computing k-Modal Embeddings of Planar Digraphs

Giordano Da Lozzo, Juan Jose Besa, Michael T. Goodrich

arxiv:1907.01630 v1 · 2019-07-02 · cs.DS · 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{UL2Q2Q5T26VYUNEJJLC2GR34CJ}

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	2026-05-17T23:41:35.713880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2f50d43b3d7ab8a34894ac5a3477c127487d6e3ff29f0d0eca25f2ac08b84de

Aliases

arxiv: 1907.01630 · arxiv_version: 1907.01630v1 · doi: 10.48550/arxiv.1907.01630 · pith_short_12: UL2Q2Q5T26VY · pith_short_16: UL2Q2Q5T26VYUNEJ · pith_short_8: UL2Q2Q5T

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/UL2Q2Q5T26VYUNEJJLC2GR34CJ \
  | 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: a2f50d43b3d7ab8a34894ac5a3477c127487d6e3ff29f0d0eca25f2ac08b84de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eaf35b99e26f09fba7c73a9ea3cda2d60e2e417f7d25eae9d2009c81ee90616",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-02T20:53:41Z",
    "title_canon_sha256": "c6ae3facb8915a46a66d1247c7bcc96863dc636470fa3a3ad937c4cbe259c916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01630",
    "kind": "arxiv",
    "version": 1
  }
}