Pith Number

pith:7UBQN3PC

pith:2018:7UBQN3PCHB72WVBJSLAYRIJR3N

not attested not anchored not stored refs pending

Non uniform weighted extended B-Spline finite element analysis of non linear elliptic partial differential equations

Ayan Chakraborty, B.V.Rathish Kumar

arxiv:1807.01159 v1 · 2018-06-30 · 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{7UBQN3PCHB72WVBJSLAYRIJR3N}

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	2026-05-18T00:11:45.086354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd0306ede2387fab542992c188a131db55c352625a865d112aead3c4d2c2d606

Aliases

arxiv: 1807.01159 · arxiv_version: 1807.01159v1 · doi: 10.48550/arxiv.1807.01159 · pith_short_12: 7UBQN3PCHB72 · pith_short_16: 7UBQN3PCHB72WVBJ · pith_short_8: 7UBQN3PC

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/7UBQN3PCHB72WVBJSLAYRIJR3N \
  | 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: fd0306ede2387fab542992c188a131db55c352625a865d112aead3c4d2c2d606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9245309bb3c5f21064b1e5051162b45832bb9c26ad4ad186b3733f914e1d7ddc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-06-30T16:58:13Z",
    "title_canon_sha256": "45f33a9b84995af7f339ab8289ccb635b36e91c86b2cb8a68b44a7dec533c1ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01159",
    "kind": "arxiv",
    "version": 1
  }
}