Pith Number

pith:XQBX7LAC

pith:2018:XQBX7LACHYBSDRMMXVMCNC36NG

not attested not anchored not stored refs pending

Optimal Reinsurance for Gerber-Shiu Functions in the Cramer-Lundberg Model

Michael Preischl, Stefan Thonhauser

arxiv:1809.00990 v1 · 2018-09-04 · math.OC · q-fin.PM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XQBX7LACHYBSDRMMXVMCNC36NG}

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	2026-05-18T00:06:17.952975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc037fac023e0321c58cbd58268b7e69bbf7f9170984d132b244e9998ad59f65

Aliases

arxiv: 1809.00990 · arxiv_version: 1809.00990v1 · doi: 10.48550/arxiv.1809.00990 · pith_short_12: XQBX7LACHYBS · pith_short_16: XQBX7LACHYBSDRMM · pith_short_8: XQBX7LAC

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/XQBX7LACHYBSDRMMXVMCNC36NG \
  | 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: bc037fac023e0321c58cbd58268b7e69bbf7f9170984d132b244e9998ad59f65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3ef0ceba2cdfed9e72455db6d68315c7bc4ef9d7e97fdf7543cd5fd6d382bd9",
    "cross_cats_sorted": [
      "q-fin.PM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-09-04T14:05:40Z",
    "title_canon_sha256": "31970d04fac33afa885c676186f0dc3d38cbb3059c93806364103e527035f4e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00990",
    "kind": "arxiv",
    "version": 1
  }
}