Pith Number

pith:VOFDRHTW

pith:2017:VOFDRHTWNQOTQ6N62RK3FYRGIO

not attested not anchored not stored refs pending

Fractional Herglotz variational problems of variable order

Delfim F. M. Torres, Dina Tavares, Ricardo Almeida

arxiv:1703.09104 v1 · 2017-03-27 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VOFDRHTWNQOTQ6N62RK3FYRGIO}

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	2026-05-18T00:33:06.740207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab8a389e766c1d3879bed455b2e2264384961f6df21b5838f0510dff14a9764d

Aliases

arxiv: 1703.09104 · arxiv_version: 1703.09104v1 · doi: 10.48550/arxiv.1703.09104 · pith_short_12: VOFDRHTWNQOT · pith_short_16: VOFDRHTWNQOTQ6N6 · pith_short_8: VOFDRHTW

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/VOFDRHTWNQOTQ6N62RK3FYRGIO \
  | 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: ab8a389e766c1d3879bed455b2e2264384961f6df21b5838f0510dff14a9764d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0622c04a0ec240b543a55aa9004dc963655648a76587c53a0e41d6f82c7c8746",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-27T14:29:19Z",
    "title_canon_sha256": "64b5cc6b0807d0a48ee7febe31b6ba710b2db8c75bc22c7f8e121ed205e030de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09104",
    "kind": "arxiv",
    "version": 1
  }
}