Pith Number

pith:4EQTNC5Y

pith:2013:4EQTNC5YAXXLOPHV76XCO7ABBG

not attested not anchored not stored refs pending

Nitsche's method for two and three dimensional NURBS patch coupling

Elvio Bonisoli, Marco Brino, Pierre Kerfriden, Stephane Bordas, Vinh Phu Nguyen

arxiv:1308.0802 v1 · 2013-08-04 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EQTNC5YAXXLOPHV76XCO7ABBG}

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	2026-05-18T01:21:40.859213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e121368bb805eeb73cf5ffae277c0109b79b2a926d859d7b729725777c966c19

Aliases

arxiv: 1308.0802 · arxiv_version: 1308.0802v1 · doi: 10.48550/arxiv.1308.0802 · pith_short_12: 4EQTNC5YAXXL · pith_short_16: 4EQTNC5YAXXLOPHV · pith_short_8: 4EQTNC5Y

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/4EQTNC5YAXXLOPHV76XCO7ABBG \
  | 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: e121368bb805eeb73cf5ffae277c0109b79b2a926d859d7b729725777c966c19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2b416f68fbd15dee4dea24425c819a632d5e145ed931bd67c516742736af1fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-08-04T12:32:56Z",
    "title_canon_sha256": "e3cb0690c01b51dd20ae390814dab822bae3152163cb8c683e8131fc34c2bba7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0802",
    "kind": "arxiv",
    "version": 1
  }
}