Pith Number

pith:NY3D7D2K

pith:2017:NY3D7D2KNB6RQHIHBLALXYTMZX

not attested not anchored not stored refs pending

Replica Analysis for Portfolio Optimization with Single-Factor Model

Takashi Shinzato

arxiv:1704.01366 v1 · 2017-04-05 · 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{NY3D7D2KNB6RQHIHBLALXYTMZX}

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	2026-05-18T00:44:15.330260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e363f8f4a687d181d070ac0bbe26ccdecf19d8199bb2f70754322e96ba292ea

Aliases

arxiv: 1704.01366 · arxiv_version: 1704.01366v1 · doi: 10.48550/arxiv.1704.01366 · pith_short_12: NY3D7D2KNB6R · pith_short_16: NY3D7D2KNB6RQHIH · pith_short_8: NY3D7D2K

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/NY3D7D2KNB6RQHIHBLALXYTMZX \
  | 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: 6e363f8f4a687d181d070ac0bbe26ccdecf19d8199bb2f70754322e96ba292ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71371edf966020e5c4d8045d514eb976639dc4b36244d878f8dcdb62f4c02c22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2017-04-05T11:09:50Z",
    "title_canon_sha256": "3f90b14e46343f2554379641284dc2e5d0b149b7c2c7fd461c11d1221c5776a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01366",
    "kind": "arxiv",
    "version": 1
  }
}