Pith Number

pith:KHEE7Y3Q

pith:2018:KHEE7Y3QU56G5277WCOL3VAQG2

not attested not anchored not stored refs pending

A Novel Optimization Approach to Fictitious Domain Methods

Daniel Agress, Patrick Guidotti

arxiv:1808.02158 v3 · 2018-08-07 · 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{KHEE7Y3QU56G5277WCOL3VAQG2}

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	2026-05-17T23:56:14.860999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51c84fe370a77c6eebffb09cbdd4103697cb1412fefa49c1e721f3ae32256631

Aliases

arxiv: 1808.02158 · arxiv_version: 1808.02158v3 · doi: 10.48550/arxiv.1808.02158 · pith_short_12: KHEE7Y3QU56G · pith_short_16: KHEE7Y3QU56G5277 · pith_short_8: KHEE7Y3Q

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/KHEE7Y3QU56G5277WCOL3VAQG2 \
  | 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: 51c84fe370a77c6eebffb09cbdd4103697cb1412fefa49c1e721f3ae32256631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66bbcf768ef27388267f957716637bc881d2a7573ff74402077b04df0e55bd27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-07T00:01:03Z",
    "title_canon_sha256": "9018bf96a30dd99de7e0cf465ef62696efa49c8880f7e2e2b3279c6691cf7ab4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02158",
    "kind": "arxiv",
    "version": 3
  }
}