Pith Number

pith:FAVEASXD

pith:2026:FAVEASXDC5TDXHSK4N5XFBHKPR

not attested not anchored not stored refs pending

Robust Optimal Reinsurance, Investment,and Surplus Allocation for Epstein-Zin Preferences

Jianxuan Li, Junyi Guo, Qianqian Zhou

arxiv:2605.18145 v1 · 2026-05-18 · 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{FAVEASXDC5TDXHSK4N5XFBHKPR}

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	2026-05-20T00:05:48.221741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

282a404ae317663b9e4ae37b7284ea7c6a84ca8e912a0f2d1bbf07cfb18f83ea

Aliases

arxiv: 2605.18145 · arxiv_version: 2605.18145v1 · doi: 10.48550/arxiv.2605.18145 · pith_short_12: FAVEASXDC5TD · pith_short_16: FAVEASXDC5TDXHSK · pith_short_8: FAVEASXD

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/FAVEASXDC5TDXHSK4N5XFBHKPR \
  | 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: 282a404ae317663b9e4ae37b7284ea7c6a84ca8e912a0f2d1bbf07cfb18f83ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8f27d70015430637a95c6a8c630c870870dc47fde49e609f6189bde2a7eeb4b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-18T09:50:58Z",
    "title_canon_sha256": "d3504567ca64b8134b1fd42f366cdc860b2e81aaf7b0f3b753101bd598e53eef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18145",
    "kind": "arxiv",
    "version": 1
  }
}