Pith Number

pith:QRSLOEQI

pith:2026:QRSLOEQIOHWZFP7M65JQZFSIIY

not attested not anchored not stored refs pending

Are Three Matrices All You Need To Beat the Market? Observable Matrix Dynamics for Portfolio Optimization

Igor Halperin

arxiv:2607.27461 v1 · 2026-07-29 · q-fin.PM · q-fin.RM · q-fin.ST

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRSLOEQIOHWZFP7M65JQZFSIIY}

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	2026-07-31T01:23:21.258876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

8464b7120871ed92bfecf7530c964846236553c9d0a387332ec207a84fb05fc8

Aliases

arxiv: 2607.27461 · arxiv_version: 2607.27461v1 · doi: 10.48550/arxiv.2607.27461 · pith_short_12: QRSLOEQIOHWZ · pith_short_16: QRSLOEQIOHWZFP7M · pith_short_8: QRSLOEQI

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/QRSLOEQIOHWZFP7M65JQZFSIIY \
  | 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: 8464b7120871ed92bfecf7530c964846236553c9d0a387332ec207a84fb05fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa739aba3ae61ecfa7d84785ecfa72b710b0fd7368a1e5a66786b86652852720",
    "cross_cats_sorted": [
      "q-fin.RM",
      "q-fin.ST"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2026-07-29T20:53:46Z",
    "title_canon_sha256": "4c7e446661a3ea2b6c2caa627f91c64b9d6b4e65863ad6f0713b935e748797c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27461",
    "kind": "arxiv",
    "version": 1
  }
}