Pith Number

pith:O3EUDGOW

pith:2014:O3EUDGOW4RTPMLGHSBEJHJKZM7

not attested not anchored not stored refs pending

Existence of minimizers for generalized Lagrangian functionals and a necessary optimality condition --- Application to fractional variational problems

Delfim F.M. Torres, Lo\"ic Bourdin, Tatiana Odzijewicz

arxiv:1403.3937 v1 · 2014-03-16 · 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{O3EUDGOW4RTPMLGHSBEJHJKZM7}

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	2026-05-18T02:52:25.366273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76c94199d6e466f62cc7904893a55967e09357a7602ea3c4bfcc172f8c0b7d4c

Aliases

arxiv: 1403.3937 · arxiv_version: 1403.3937v1 · doi: 10.48550/arxiv.1403.3937 · pith_short_12: O3EUDGOW4RTP · pith_short_16: O3EUDGOW4RTPMLGH · pith_short_8: O3EUDGOW

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/O3EUDGOW4RTPMLGHSBEJHJKZM7 \
  | 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: 76c94199d6e466f62cc7904893a55967e09357a7602ea3c4bfcc172f8c0b7d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1db4780fa1506e4876d169e4e8ae2a53f04b5d3871f0283ad61569a5d51f8dd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-03-16T17:54:57Z",
    "title_canon_sha256": "531aa69df80c228c4fe8b371ddc0ec94d26a6ecaa5d214693408043960b360a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3937",
    "kind": "arxiv",
    "version": 1
  }
}