Pith Number

pith:TEZQPCDE

pith:2018:TEZQPCDEJ66DMLMHXOGDLQ3DV2

not attested not anchored not stored refs pending

Can coercive formulations lead to fast and accurate solution of the Helmholtz equation?

Andrea Moiola, Euan A. Spence, Ganesh C. Diwan

arxiv:1806.05934 v2 · 2018-06-15 · 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{TEZQPCDEJ66DMLMHXOGDLQ3DV2}

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	2026-06-04T19:11:58.974254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99330788644fbc362d87bb8c35c363aeadc03832d95129f6ef5a64e5e10d6a34

Aliases

arxiv: 1806.05934 · arxiv_version: 1806.05934v2 · doi: 10.48550/arxiv.1806.05934 · pith_short_12: TEZQPCDEJ66D · pith_short_16: TEZQPCDEJ66DMLMH · pith_short_8: TEZQPCDE

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/TEZQPCDEJ66DMLMHXOGDLQ3DV2 \
  | 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: 99330788644fbc362d87bb8c35c363aeadc03832d95129f6ef5a64e5e10d6a34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b7366ed45fe1c3a1266b21bae2a8093d37a8ae1cd45b86f8fee8ac2086cbfc2",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-06-15T12:48:12Z",
    "title_canon_sha256": "2552cbb8da8d8a437477f30e45793ef8d5e9b0f8b9c28877f4abd7c6cf976335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05934",
    "kind": "arxiv",
    "version": 2
  }
}