Pith Number

pith:OTMBHEXQ

pith:2016:OTMBHEXQR3CW44EKAWTNLUVQDQ

not attested not anchored not stored refs pending

Generalized elastica problems under area constraint

Bernd Kawohl, Carlo Nitsch, Vincenzo Ferone

arxiv:1606.01569 v1 · 2016-06-05 · math.OC · 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{OTMBHEXQR3CW44EKAWTNLUVQDQ}

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	2026-05-18T01:12:53.952170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74d81392f08ec56e708a05a6d5d2b01c1af565feefd6260a86c21420f0b02a10

Aliases

arxiv: 1606.01569 · arxiv_version: 1606.01569v1 · doi: 10.48550/arxiv.1606.01569 · pith_short_12: OTMBHEXQR3CW · pith_short_16: OTMBHEXQR3CW44EK · pith_short_8: OTMBHEXQ

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/OTMBHEXQR3CW44EKAWTNLUVQDQ \
  | 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: 74d81392f08ec56e708a05a6d5d2b01c1af565feefd6260a86c21420f0b02a10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd1e323bca46f4385cb9aed090cc220760495b063391987818606f18ec0d1ab5",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-06-05T21:59:59Z",
    "title_canon_sha256": "7c5f32b330e6c1283ee7fd0646c21821824d013fd7aa5f0a0198773fb537ffb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01569",
    "kind": "arxiv",
    "version": 1
  }
}