Pith Number

pith:HPVGXJFU

pith:2019:HPVGXJFUZHU6FC3MG2ZJ6MHQKD

not attested not anchored not stored refs pending

A Multigrid Method for a Nitsche-based Extended Finite Element Method

Hardik Kothari, Rolf Krause

arxiv:1912.00496 v1 · 2019-12-01 · 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{HPVGXJFUZHU6FC3MG2ZJ6MHQKD}

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	2026-07-05T03:03:05.561649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bea6ba4b4c9e9e28b6c36b29f30f050f81b20de6a478e9df91913726bc0f3a9

Aliases

arxiv: 1912.00496 · arxiv_version: 1912.00496v1 · doi: 10.48550/arxiv.1912.00496 · pith_short_12: HPVGXJFUZHU6 · pith_short_16: HPVGXJFUZHU6FC3M · pith_short_8: HPVGXJFU

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/HPVGXJFUZHU6FC3MG2ZJ6MHQKD \
  | 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: 3bea6ba4b4c9e9e28b6c36b29f30f050f81b20de6a478e9df91913726bc0f3a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e269bff71ef872c4dc8a8500ee2fb56f77387cfa26bffdd31c8b002a181a9873",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-12-01T20:28:08Z",
    "title_canon_sha256": "e565113fe547021c92e86bf35ec2b16f5977720e1fa834ecc1ee523466ed8236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.00496",
    "kind": "arxiv",
    "version": 1
  }
}