Pith Number

pith:6O643R7W

pith:2012:6O643R7W4VF6KKRD2TIRCSNECK

not attested not anchored not stored refs pending

A Sparse and High-Order Accurate Line-Based Discontinuous Galerkin Method for Unstructured Meshes

Per-Olof Persson

arxiv:1204.1533 v2 · 2012-04-06 · 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{6O643R7W4VF6KKRD2TIRCSNECK}

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	2026-05-18T01:57:56.071893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3bdcdc7f6e54be52a23d4d11149a412af4c3de950dc2600bcb613222cee1939

Aliases

arxiv: 1204.1533 · arxiv_version: 1204.1533v2 · doi: 10.48550/arxiv.1204.1533 · pith_short_12: 6O643R7W4VF6 · pith_short_16: 6O643R7W4VF6KKRD · pith_short_8: 6O643R7W

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/6O643R7W4VF6KKRD2TIRCSNECK \
  | 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: f3bdcdc7f6e54be52a23d4d11149a412af4c3de950dc2600bcb613222cee1939

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f7caf3adf3f9a0060f949f51681671cfbbf7beb72ecdae3be069d5c2e331308",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-04-06T18:47:56Z",
    "title_canon_sha256": "027b71d3624ff9ca4916d4560b69a8fe89c9faeabfe25a4a6cf7e52f88c9687d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1533",
    "kind": "arxiv",
    "version": 2
  }
}