Pith Number

pith:W64HQQR2

pith:2018:W64HQQR2KN2B5ETC2FJJVZBLQF

not attested not anchored not stored refs pending

The Hessian discretisation method for fourth order linear elliptic equations

Bishnu P. Lamichhane, Devika Shylaja, J\'er\^ome Droniou

arxiv:1803.06985 v3 · 2018-03-19 · 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{W64HQQR2KN2B5ETC2FJJVZBLQF}

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	2026-05-18T00:07:17.905050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b878423a53741e9262d1529ae42b815d0f6a2f904d8a3256384ffebadc0a20

Aliases

arxiv: 1803.06985 · arxiv_version: 1803.06985v3 · doi: 10.48550/arxiv.1803.06985 · pith_short_12: W64HQQR2KN2B · pith_short_16: W64HQQR2KN2B5ETC · pith_short_8: W64HQQR2

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/W64HQQR2KN2B5ETC2FJJVZBLQF \
  | 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: b7b878423a53741e9262d1529ae42b815d0f6a2f904d8a3256384ffebadc0a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8db788d391780c2076b8d7389331c1c30948d59c629ec29856d06e9020cad559",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-19T15:20:43Z",
    "title_canon_sha256": "0c90b35b9a943b0a63fc08e634dc2ab6bf5c25bb66c074b59a9701c5b0b1ac67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06985",
    "kind": "arxiv",
    "version": 3
  }
}