Pith Number

pith:SI35BGT4

pith:2014:SI35BGT44CL3G334FCJ6CWZRJF

not attested not anchored not stored refs pending

Variational Integrators for Nonvariational Partial Differential Equations

Michael Kraus, Omar Maj

arxiv:1412.2011 v3 · 2014-12-05 · math.NA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SI35BGT44CL3G334FCJ6CWZRJF}

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	2026-05-18T00:33:44.330554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9237d09a7ce097b36f7c2893e15b314949b785039d09e6fd3e249f452c28eea4

Aliases

arxiv: 1412.2011 · arxiv_version: 1412.2011v3 · doi: 10.48550/arxiv.1412.2011 · pith_short_12: SI35BGT44CL3 · pith_short_16: SI35BGT44CL3G334 · pith_short_8: SI35BGT4

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/SI35BGT44CL3G334FCJ6CWZRJF \
  | 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: 9237d09a7ce097b36f7c2893e15b314949b785039d09e6fd3e249f452c28eea4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "366f85049d0509d9d5ca3375bcfbfa86486ce2927660619433adfb32d9b98998",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-12-05T14:37:15Z",
    "title_canon_sha256": "3d1146ee187f72ff52728f8d6b1fa145a9fed72d83149426dc08e95241011c7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2011",
    "kind": "arxiv",
    "version": 3
  }
}