Pith Number

pith:IRF2FFYU

pith:2018:IRF2FFYUBSQQD54WH5NKUQS2MB

not attested not anchored not stored refs pending

Preconditioning of a hybridized discontinuous Galerkin finite element method for the Stokes equations

Garth N. Wells, Sander Rhebergen

arxiv:1801.04707 v2 · 2018-01-15 · math.NA · cs.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{IRF2FFYUBSQQD54WH5NKUQS2MB}

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	2026-06-04T19:11:25.310279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

444ba297140ca101f7963f5aaa425a607f33f67b4b0689339d502a6ffbeb77a1

Aliases

arxiv: 1801.04707 · arxiv_version: 1801.04707v2 · doi: 10.48550/arxiv.1801.04707 · pith_short_12: IRF2FFYUBSQQ · pith_short_16: IRF2FFYUBSQQD54W · pith_short_8: IRF2FFYU

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/IRF2FFYUBSQQD54WH5NKUQS2MB \
  | 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: 444ba297140ca101f7963f5aaa425a607f33f67b4b0689339d502a6ffbeb77a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f08646b8f9b6502e1d4fba45f054cd2c2bc8affcedd2682b718557287e6855e8",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-15T09:12:57Z",
    "title_canon_sha256": "5f815de425909e5b9f3b2e6c82d9e53bbde6b72165f1daa8db9bd2097604f447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04707",
    "kind": "arxiv",
    "version": 2
  }
}