Pith Number

pith:MFIZAMAX

pith:2025:MFIZAMAX5OJWWYHOXX44PJHHXA

not attested not anchored not stored refs pending

EFS: Evolutionary Factor Searching for Sparse Portfolio Optimization Using Large Language Models

Chen Liu, Haochen Luo, Yuan Zhang

arxiv:2507.17211 v1 · 2025-07-23 · 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{MFIZAMAX5OJWWYHOXX44PJHHXA}

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.

Cited by

1 paper in Pith

AlphaMemo: Structured Search-Process Memory for Self-Evolving Alpha Mining Agents

Receipt and verification

First computed	2026-07-05T11:42:03.498167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6151903017eb936b60eebdf9c7a4e7b812cc37d20e8a73808a4fe1824b5b4db9

Aliases

arxiv: 2507.17211 · arxiv_version: 2507.17211v1 · doi: 10.48550/arxiv.2507.17211 · pith_short_12: MFIZAMAX5OJW · pith_short_16: MFIZAMAX5OJWWYHO · pith_short_8: MFIZAMAX

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/MFIZAMAX5OJWWYHOXX44PJHHXA \
  | 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: 6151903017eb936b60eebdf9c7a4e7b812cc37d20e8a73808a4fe1824b5b4db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "520b9a328de76db7a2f4f1b5672e9d899ce4a03d9d6773ded591a9178c4903bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2025-07-23T05:07:54Z",
    "title_canon_sha256": "66905d6cc2d369b7814145b2827f0012e31b8fc1fb55d426b90e708038b77aae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17211",
    "kind": "arxiv",
    "version": 1
  }
}