Pith Number

pith:UIJM3ILZ

pith:2013:UIJM3ILZ2QDGDSXWL6W4GVPE4Z

not attested not anchored not stored refs pending

Algorithms for detecting dependencies and rigid subsystems for CAD

Audrey Lee-St.John, Helena Kleinschmidt, James Farre, Jessica Sidman, Louis Theran, Stephanie Stark, Xilin Yu

arxiv:1306.1572 v2 · 2013-06-06 · cs.CG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIJM3ILZ2QDGDSXWL6W4GVPE4Z}

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	2026-05-18T01:31:19.265460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a212cda179d40661caf65fadc355e4e643b1be0e0576db6426c345f1a2becf31

Aliases

arxiv: 1306.1572 · arxiv_version: 1306.1572v2 · doi: 10.48550/arxiv.1306.1572 · pith_short_12: UIJM3ILZ2QDG · pith_short_16: UIJM3ILZ2QDGDSXW · pith_short_8: UIJM3ILZ

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/UIJM3ILZ2QDGDSXWL6W4GVPE4Z \
  | 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: a212cda179d40661caf65fadc355e4e643b1be0e0576db6426c345f1a2becf31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb804dcbcfa78c6c4365443cf74fb568bbbc44a8f025b794adbf2659ae82ee3",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-06-06T23:15:06Z",
    "title_canon_sha256": "5157bb8659e651c18dceaddc050750a7464d96b035556328f019843b2a0d7f64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1572",
    "kind": "arxiv",
    "version": 2
  }
}