Pith Number

pith:E7Y2WMLA

pith:2013:E7Y2WMLAURME4BN5HAQRMYPR5P

not attested not anchored not stored refs pending

Barycentric Coordinates as Interpolants

Russell A. Brown

arxiv:1308.1279 v9 · 2013-08-06 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E7Y2WMLAURME4BN5HAQRMYPR5P}

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	2026-05-18T02:39:01.283107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27f1ab3160a4584e05bd38211661f1ebee4253c74052a62f8a9f44067eca6f10

Aliases

arxiv: 1308.1279 · arxiv_version: 1308.1279v9 · doi: 10.48550/arxiv.1308.1279 · pith_short_12: E7Y2WMLAURME · pith_short_16: E7Y2WMLAURME4BN5 · pith_short_8: E7Y2WMLA

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/E7Y2WMLAURME4BN5HAQRMYPR5P \
  | 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: 27f1ab3160a4584e05bd38211661f1ebee4253c74052a62f8a9f44067eca6f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89b830f34ff5799d8b6429a5500d9a928cbd467b7441019c3fdd1617122081db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2013-08-06T14:15:42Z",
    "title_canon_sha256": "e14e0dc6e6837ff7178ed8f38090805bafcefc0cc89920f6d3b4d7b269a5b5c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1279",
    "kind": "arxiv",
    "version": 9
  }
}