Pith Number

pith:MZ55N3U2

pith:2017:MZ55N3U2H3DFVCNAZQRSM7TKMI

not attested not anchored not stored refs pending

Adaptive local surface refinement based on LR NURBS and its application to contact

Christopher Zimmermann, Roger A. Sauer

arxiv:1701.08742 v3 · 2017-01-30 · cs.CE · 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{MZ55N3U2H3DFVCNAZQRSM7TKMI}

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	2026-05-18T00:35:04.724114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

667bd6ee9a3ec65a89a0cc23267e6a622a1eaf46f7786e96de0ca0eef079ef24

Aliases

arxiv: 1701.08742 · arxiv_version: 1701.08742v3 · doi: 10.48550/arxiv.1701.08742 · pith_short_12: MZ55N3U2H3DF · pith_short_16: MZ55N3U2H3DFVCNA · pith_short_8: MZ55N3U2

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/MZ55N3U2H3DFVCNAZQRSM7TKMI \
  | 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: 667bd6ee9a3ec65a89a0cc23267e6a622a1eaf46f7786e96de0ca0eef079ef24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07f1a73d6e6f5dd8d7367dafbcf6928c3ce7d63dd50a022d06f4c370c8ac8d73",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2017-01-30T18:29:18Z",
    "title_canon_sha256": "1da8c163204f7ea8095b8f6e0642bcdaa27d1af87c02ff31143bf857e8e9bb11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08742",
    "kind": "arxiv",
    "version": 3
  }
}