Pith Number

pith:USINP3IL

pith:2019:USINP3ILWCMXWPK3CNLUYVH7LL

not attested not anchored not stored refs pending

Shortest-Path-Preserving Rounding

David K\"ubel, Elmar Langetepe, Herman Haverkort

arxiv:1905.08621 v1 · 2019-05-21 · cs.CC · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USINP3ILWCMXWPK3CNLUYVH7LL}

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	2026-05-17T23:45:42.617978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a490d7ed0bb0997b3d5b13574c54ff5afc1eb912aa05e76fd45c135924cd4398

Aliases

arxiv: 1905.08621 · arxiv_version: 1905.08621v1 · doi: 10.48550/arxiv.1905.08621 · pith_short_12: USINP3ILWCMX · pith_short_16: USINP3ILWCMXWPK3 · pith_short_8: USINP3IL

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/USINP3ILWCMXWPK3CNLUYVH7LL \
  | 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: a490d7ed0bb0997b3d5b13574c54ff5afc1eb912aa05e76fd45c135924cd4398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e7cebfe25efc696bbfda00d453fc8795c296e20188d78f526f7fec6dfd4aa19",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-05-21T13:30:37Z",
    "title_canon_sha256": "e6824cbdeb7d05e4e9207dd7f1c0118260948a8f257bc509a5ed28beee5da61e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08621",
    "kind": "arxiv",
    "version": 1
  }
}