Pith Number

pith:5DS7GMND

pith:2017:5DS7GMNDKFXYL4GCI6DK36GR5B

not attested not anchored not stored refs pending

Fractional Herglotz Variational Principles with Generalized Caputo Derivatives

Delfim F. M. Torres, Giorgio S. Taverna, Roberto Garra

arxiv:1704.05697 v1 · 2017-04-19 · math.OC · 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{5DS7GMNDKFXYL4GCI6DK36GR5B}

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	2026-05-18T00:40:04.048426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8e5f331a3516f85f0c24786adf8d1e85f31ac7cb3547c4f3ac85c39a543ecba

Aliases

arxiv: 1704.05697 · arxiv_version: 1704.05697v1 · doi: 10.48550/arxiv.1704.05697 · pith_short_12: 5DS7GMNDKFXY · pith_short_16: 5DS7GMNDKFXYL4GC · pith_short_8: 5DS7GMND

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/5DS7GMNDKFXYL4GCI6DK36GR5B \
  | 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: e8e5f331a3516f85f0c24786adf8d1e85f31ac7cb3547c4f3ac85c39a543ecba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b08ffb26b68c732b99ba659b2546c478e209a6a91191248403b6d505136dd111",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-04-19T11:27:42Z",
    "title_canon_sha256": "0fb4ed8d3b77ed44796291c31232498afa9d21e0d6e41404015fdf97225cc3f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05697",
    "kind": "arxiv",
    "version": 1
  }
}