Pith Number

pith:47M5OQV5

pith:2011:47M5OQV5WFWNFNOJGQ5Q47A6C3

not attested not anchored not stored refs pending

A finite element method for fully nonlinear elliptic problems

Omar Lakkis, Tristan Pryer

arxiv:1103.2970 v5 · 2011-03-15 · 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{47M5OQV5WFWNFNOJGQ5Q47A6C3}

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	2026-05-18T02:22:18.996552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7d9d742bdb16cd2b5c9343b0e7c1e16f809e4a86911c2797cfd9f98a388d6fc

Aliases

arxiv: 1103.2970 · arxiv_version: 1103.2970v5 · doi: 10.48550/arxiv.1103.2970 · pith_short_12: 47M5OQV5WFWN · pith_short_16: 47M5OQV5WFWNFNOJ · pith_short_8: 47M5OQV5

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/47M5OQV5WFWNFNOJGQ5Q47A6C3 \
  | 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: e7d9d742bdb16cd2b5c9343b0e7c1e16f809e4a86911c2797cfd9f98a388d6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0bb6c6c731cf4d89a1438b426c4073b5a055daaf2a208ee7048626c84a8fce6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-15T17:35:12Z",
    "title_canon_sha256": "e735606e1bcbfe21b9fb72733cbef18e7d5bcfee2b0886f83ade13af2255e01b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2970",
    "kind": "arxiv",
    "version": 5
  }
}