Pith Number

pith:SH3B3HUV

pith:2019:SH3B3HUVLVKZ7OVHJDX3FBYRGL

not attested not anchored not stored refs pending

Location and portfolio selection problems: A unified framework

Andrea Scozzari, Justo Puerto, Moises Rodr\'iguez-Madrena

arxiv:1907.07101 v1 · 2019-07-15 · 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{SH3B3HUVLVKZ7OVHJDX3FBYRGL}

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	2026-05-17T23:40:28.090694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91f61d9e955d559fbaa748efb2871132e35fbb741f4bb44917a318bf84c9025d

Aliases

arxiv: 1907.07101 · arxiv_version: 1907.07101v1 · doi: 10.48550/arxiv.1907.07101 · pith_short_12: SH3B3HUVLVKZ · pith_short_16: SH3B3HUVLVKZ7OVH · pith_short_8: SH3B3HUV

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/SH3B3HUVLVKZ7OVHJDX3FBYRGL \
  | 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: 91f61d9e955d559fbaa748efb2871132e35fbb741f4bb44917a318bf84c9025d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a8283e7a4ebd53ccd0fc680dfa6d9349e713949f3f90463fa4897d70139da17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2019-07-15T07:16:40Z",
    "title_canon_sha256": "fcbd5309866c7d715d4130a8f76653c5327ef20c79febf07144d0c2a37e8accf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07101",
    "kind": "arxiv",
    "version": 1
  }
}