Pith Number

pith:RGWIFWQP

pith:2012:RGWIFWQPMAYFYIM3XP7FOU7OV2

not attested not anchored not stored refs pending

Operator splitting for well-posed active scalar equations

Helge Holden, Kenneth H. Karlsen, Trygve K. Karper

arxiv:1201.6254 v2 · 2012-01-30 · math.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RGWIFWQPMAYFYIM3XP7FOU7OV2}

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	2026-05-18T04:03:20.818608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89ac82da0f60305c219bbbfe5753eeae8e22ea66925b4a86092d6aa11e1d7d10

Aliases

arxiv: 1201.6254 · arxiv_version: 1201.6254v2 · doi: 10.48550/arxiv.1201.6254 · pith_short_12: RGWIFWQPMAYF · pith_short_16: RGWIFWQPMAYFYIM3 · pith_short_8: RGWIFWQP

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/RGWIFWQPMAYFYIM3XP7FOU7OV2 \
  | 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: 89ac82da0f60305c219bbbfe5753eeae8e22ea66925b4a86092d6aa11e1d7d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db4ce72fe59c5d728665c74fd1a374f1bd945772a7abdf16d768aba3df33d4a4",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-01-30T15:29:40Z",
    "title_canon_sha256": "0893ff1e76c816059c57a72192ed5ecd803d3c68cf801961524479e92462d62a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6254",
    "kind": "arxiv",
    "version": 2
  }
}