Pith Number

pith:XYQR6OV4

pith:2018:XYQR6OV4PMSWHW3VWPFIVWA6OV

not attested not anchored not stored refs pending

Nitsche's method for unilateral contact problems

Juha Videman, Rolf Stenberg, Tom Gustafsson

arxiv:1805.04283 v1 · 2018-05-11 · 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{XYQR6OV4PMSWHW3VWPFIVWA6OV}

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	2026-05-18T00:16:12.953468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be211f3abc7b2563db75b3ca8ad81e7562d760d0d0cac996005c85c2518f3dea

Aliases

arxiv: 1805.04283 · arxiv_version: 1805.04283v1 · doi: 10.48550/arxiv.1805.04283 · pith_short_12: XYQR6OV4PMSW · pith_short_16: XYQR6OV4PMSWHW3V · pith_short_8: XYQR6OV4

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/XYQR6OV4PMSWHW3VWPFIVWA6OV \
  | 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: be211f3abc7b2563db75b3ca8ad81e7562d760d0d0cac996005c85c2518f3dea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33e527d55933bb355a1b12ecb2227f206d90723119acce9ff73fd521a7942333",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-11T09:07:43Z",
    "title_canon_sha256": "1d848cbdbf8309cb4dd73535952e1093a7ae3dc4b5bd1e66aeea27148a62fb2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04283",
    "kind": "arxiv",
    "version": 1
  }
}