Pith Number

pith:XZOIRCJG

pith:2018:XZOIRCJGL6BIFW5OJIKR7WBHNX

not attested not anchored not stored refs pending

Portfolio Optimization with Delay Factor Models

Li-Hsien Sun, Shuenn-Jyi Sheu, Zheng Zhang

arxiv:1805.01118 v1 · 2018-05-03 · q-fin.MF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZOIRCJGL6BIFW5OJIKR7WBHNX}

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	2026-05-18T00:16:52.505541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be5c8889265f8282dbae4a151fd8276dcbab09fa52feefd7ac1e8cd6024b7bb1

Aliases

arxiv: 1805.01118 · arxiv_version: 1805.01118v1 · doi: 10.48550/arxiv.1805.01118 · pith_short_12: XZOIRCJGL6BI · pith_short_16: XZOIRCJGL6BIFW5O · pith_short_8: XZOIRCJG

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/XZOIRCJGL6BIFW5OJIKR7WBHNX \
  | 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: be5c8889265f8282dbae4a151fd8276dcbab09fa52feefd7ac1e8cd6024b7bb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9f1710cb84386a2531df5a28c3936e0cf840e966b72e61dfb3d2c6c080d7db0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2018-05-03T05:12:15Z",
    "title_canon_sha256": "a4dc6b31540104f1926668efa7972cdc49ca9df7203df54f6b02443d91d3c0bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01118",
    "kind": "arxiv",
    "version": 1
  }
}