Pith Number

pith:NL4HL62P

pith:2018:NL4HL62PV7IN2GMIMVXEOF6BGD

not attested not anchored not stored refs pending

Optimal proportional reinsurance and investment for stochastic factor models

Claudia Ceci, Matteo Brachetta

arxiv:1806.01223 v1 · 2018-06-04 · q-fin.RM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NL4HL62PV7IN2GMIMVXEOF6BGD}

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	2026-05-17T23:49:33.567227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6af875fb4fafd0dd1988656e4717c130e1a75619db46231bb378af248563f8d1

Aliases

arxiv: 1806.01223 · arxiv_version: 1806.01223v1 · doi: 10.48550/arxiv.1806.01223 · pith_short_12: NL4HL62PV7IN · pith_short_16: NL4HL62PV7IN2GMI · pith_short_8: NL4HL62P

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/NL4HL62PV7IN2GMIMVXEOF6BGD \
  | 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: 6af875fb4fafd0dd1988656e4717c130e1a75619db46231bb378af248563f8d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2c1df469cd5ee45e7efcbfe5425df13b9418c8512966cbdfa33f4ada3a965c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.RM",
    "submitted_at": "2018-06-04T17:06:02Z",
    "title_canon_sha256": "9131007c13e244333851515cb24178a1db800fa6f11effe260e38b59ba491744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01223",
    "kind": "arxiv",
    "version": 1
  }
}