Pith Number

pith:D6HBCUAY

pith:2012:D6HBCUAYA2GILEBEUZIA55VQNW

not attested not anchored not stored refs pending

Flux-conserving finite element methods

Qingsong Zou, Shangyou Zhang, Zhimin Zhang

arxiv:1205.1862 v1 · 2012-05-09 · 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{D6HBCUAYA2GILEBEUZIA55VQNW}

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	2026-05-18T03:55:58.459753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f8e115018068c859024a6500ef6b06da404403ec2f986b39e3395687d20e5e3

Aliases

arxiv: 1205.1862 · arxiv_version: 1205.1862v1 · doi: 10.48550/arxiv.1205.1862 · pith_short_12: D6HBCUAYA2GI · pith_short_16: D6HBCUAYA2GILEBE · pith_short_8: D6HBCUAY

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/D6HBCUAYA2GILEBEUZIA55VQNW \
  | 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: 1f8e115018068c859024a6500ef6b06da404403ec2f986b39e3395687d20e5e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3752be13cacf794bb29a2b9397d7865d8a73c88d9e10ef8b509542cb8b1c6677",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-09T03:23:10Z",
    "title_canon_sha256": "d8ad64643c9b60fe65de8e0ca76e2cce8e70fd51bb0bb100f12ce3442ec7a470"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1862",
    "kind": "arxiv",
    "version": 1
  }
}