Pith Number

pith:FWYUZW3J

pith:2018:FWYUZW3J3FL2EMJHWYVFIH6Z5C

not attested not anchored not stored refs pending

Some remarks on the coincidence set for the Signorini problem

Jes\'us Ildefonso D\'iaz, Miguel de Benito Delgado

arxiv:1812.03976 v1 · 2018-12-10 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWYUZW3J3FL2EMJHWYVFIH6Z5C}

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	2026-05-17T23:42:25.866361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db14cdb69d957a23127b62a541fd9e8b827ac8fb27a293ebe90432b551d9fe9

Aliases

arxiv: 1812.03976 · arxiv_version: 1812.03976v1 · doi: 10.48550/arxiv.1812.03976 · pith_short_12: FWYUZW3J3FL2 · pith_short_16: FWYUZW3J3FL2EMJH · pith_short_8: FWYUZW3J

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/FWYUZW3J3FL2EMJHWYVFIH6Z5C \
  | 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: 2db14cdb69d957a23127b62a541fd9e8b827ac8fb27a293ebe90432b551d9fe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7d701a6b69c58786402e93db15ff00b66a7a6725654afddfc17f0343156d193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-12-10T18:54:49Z",
    "title_canon_sha256": "3b91a347ee7e3e1483c2da556701326217e7f26718dc43cea710f5a11f95f55c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03976",
    "kind": "arxiv",
    "version": 1
  }
}