Pith Number

pith:AYI5OEWZ

pith:2019:AYI5OEWZL72X3FDPHQ22P6NUKC

not attested not anchored not stored refs pending

Weak imposition of Signorini boundary conditions on the boundary element method

Erik Burman, Matthew W. Scroggs, Stefan Frei

arxiv:1908.05580 v2 · 2019-08-15 · math.NA · cs.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{AYI5OEWZL72X3FDPHQ22P6NUKC}

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	2026-07-05T06:09:29.616866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0611d712d95ff57d946f3c35a7f9b450a883aa39109e6ed30fbac02056b7f64b

Aliases

arxiv: 1908.05580 · arxiv_version: 1908.05580v2 · doi: 10.48550/arxiv.1908.05580 · pith_short_12: AYI5OEWZL72X · pith_short_16: AYI5OEWZL72X3FDP · pith_short_8: AYI5OEWZ

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/AYI5OEWZL72X3FDPHQ22P6NUKC \
  | 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: 0611d712d95ff57d946f3c35a7f9b450a883aa39109e6ed30fbac02056b7f64b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfbee8e2518af699d41e09c6a5c16a063061f61ba3f1c1cbd9cbba33eb8c93dd",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-15T15:17:19Z",
    "title_canon_sha256": "89303ceefe6563c0afdcef72db59c3806775e56195a09a1b4677f9cc447d21f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05580",
    "kind": "arxiv",
    "version": 2
  }
}