Pith Number

pith:YH4AUPX3

pith:2013:YH4AUPX3EXCVPL3AYKMNSUSJFA

not attested not anchored not stored refs pending

A Fast Algorithm for Computing High-dimensional Risk Parity Portfolios

Jean-Charles Richard, Th\'eophile Griveau-Billion, Thierry Roncalli

arxiv:1311.4057 v1 · 2013-11-16 · 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{YH4AUPX3EXCVPL3AYKMNSUSJFA}

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	2026-05-18T03:06:53.797891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1f80a3efb25c557af60c298d9524928212235701886626c848cf367a973d6b7

Aliases

arxiv: 1311.4057 · arxiv_version: 1311.4057v1 · doi: 10.48550/arxiv.1311.4057 · pith_short_12: YH4AUPX3EXCV · pith_short_16: YH4AUPX3EXCVPL3A · pith_short_8: YH4AUPX3

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/YH4AUPX3EXCVPL3AYKMNSUSJFA \
  | 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: c1f80a3efb25c557af60c298d9524928212235701886626c848cf367a973d6b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8336f593a50a4c98b9eae854da3a9d4cd564d1c4706c897febabd4abba2aeb7e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2013-11-16T13:11:39Z",
    "title_canon_sha256": "7f9e3d642e779ed8465c2cf086be4b86ac54b03338612e7ac68ac04a035f0762"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4057",
    "kind": "arxiv",
    "version": 1
  }
}