Pith Number

pith:XBPF5WT6

pith:2023:XBPF5WT6LPQQLAA73NFAJ6NOU2

not attested not anchored not stored refs pending

Maximally Machine-Learnable Portfolios

Maximilian Goebel, Philippe Goulet Coulombe

arxiv:2306.05568 v2 · 2023-06-08 · econ.EM · q-fin.PM · q-fin.ST · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XBPF5WT6LPQQLAA73NFAJ6NOU2}

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	2026-07-05T08:04:31.963061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b85e5eda7e5be105801fdb4a04f9aea6ac3739f038df327e3b465eaff265c796

Aliases

arxiv: 2306.05568 · arxiv_version: 2306.05568v2 · doi: 10.48550/arxiv.2306.05568 · pith_short_12: XBPF5WT6LPQQ · pith_short_16: XBPF5WT6LPQQLAA7 · pith_short_8: XBPF5WT6

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/XBPF5WT6LPQQLAA73NFAJ6NOU2 \
  | 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: b85e5eda7e5be105801fdb4a04f9aea6ac3739f038df327e3b465eaff265c796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00922961618f352695c73d46c69d8f435789ef339730c7df7fb4e944a822e253",
    "cross_cats_sorted": [
      "q-fin.PM",
      "q-fin.ST",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2023-06-08T21:24:38Z",
    "title_canon_sha256": "2ffdbf09d451cc2294eb5bd1cb7ae5141cc69637f71432d070b4cf8e74423b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.05568",
    "kind": "arxiv",
    "version": 2
  }
}