Pith Number

pith:MY4SFYJD

pith:2016:MY4SFYJDLDN55YZWCEJ3AB4HVD

not attested not anchored not stored refs pending

Portfolio Selection: The Power of Equal Weight

James Thompson, Philip Ernst, Yinsen Miao

arxiv:1602.00782 v3 · 2016-02-02 · 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{MY4SFYJDLDN55YZWCEJ3AB4HVD}

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	2026-05-18T00:38:36.620003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

663922e12358dbdee3361113b00787a8f0e1a8afe598448f0468171c8bc7f82e

Aliases

arxiv: 1602.00782 · arxiv_version: 1602.00782v3 · doi: 10.48550/arxiv.1602.00782 · pith_short_12: MY4SFYJDLDN5 · pith_short_16: MY4SFYJDLDN55YZW · pith_short_8: MY4SFYJD

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/MY4SFYJDLDN55YZWCEJ3AB4HVD \
  | 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: 663922e12358dbdee3361113b00787a8f0e1a8afe598448f0468171c8bc7f82e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "384e2585ef91af189ecfe95e0e48d4d7f482dcfb56b3f69a318ca9e94e649f6a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2016-02-02T03:51:44Z",
    "title_canon_sha256": "feb1f99c2c81a066dba692110ed28ad35cec6b915cc9ca31f22a204279be0890"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.00782",
    "kind": "arxiv",
    "version": 3
  }
}