Pith Number

pith:WRSBOSPZ

pith:2018:WRSBOSPZOZMNIQSXQPAPVJE2EA

not attested not anchored not stored refs pending

Generalized derivatives for the solution operator of the obstacle problem

Anne-Therese Rauls, Gerd Wachsmuth

arxiv:1806.05052 v1 · 2018-06-13 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRSBOSPZOZMNIQSXQPAPVJE2EA}

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	2026-05-18T00:13:20.253323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4641749f97658d4425783c0faa49a203c8fbf60fe7c278615afd8e43f0a1401

Aliases

arxiv: 1806.05052 · arxiv_version: 1806.05052v1 · doi: 10.48550/arxiv.1806.05052 · pith_short_12: WRSBOSPZOZMN · pith_short_16: WRSBOSPZOZMNIQSX · pith_short_8: WRSBOSPZ

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/WRSBOSPZOZMNIQSXQPAPVJE2EA \
  | 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: b4641749f97658d4425783c0faa49a203c8fbf60fe7c278615afd8e43f0a1401

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3f3e6107192cfab66a2813a22191dedbcd767244d48039dc72fdd88d79af3c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-06-13T14:06:00Z",
    "title_canon_sha256": "a5ad81b136c4f98174337ed832d5dcba66a32c115440470642d1d5deda593d95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05052",
    "kind": "arxiv",
    "version": 1
  }
}