Pith Number

pith:565AF4ZB

pith:2017:565AF4ZBDP72PNCIFOOPWO6VBS

not attested not anchored not stored refs pending

Random matrix approach for primal-dual portfolio optimization problems

Daichi Tada, Hisashi Yamamoto, Takashi Shinzato

arxiv:1709.04620 v2 · 2017-09-14 · q-fin.PM · cond-mat.dis-nn · cs.CE · cs.LG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{565AF4ZBDP72PNCIFOOPWO6VBS}

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	2026-05-18T00:25:54.971452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efba02f3211bffa7b4482b9cfb3bd50caaa3c72a114be2f1607b431d8e308299

Aliases

arxiv: 1709.04620 · arxiv_version: 1709.04620v2 · doi: 10.48550/arxiv.1709.04620 · pith_short_12: 565AF4ZBDP72 · pith_short_16: 565AF4ZBDP72PNCI · pith_short_8: 565AF4ZB

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/565AF4ZBDP72PNCIFOOPWO6VBS \
  | 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: efba02f3211bffa7b4482b9cfb3bd50caaa3c72a114be2f1607b431d8e308299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deeaae524e8c22a47a4bfbda5f9542ad120a1bb453f2bdbf6f05f7c014ddbe6a",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.CE",
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.PM",
    "submitted_at": "2017-09-14T05:45:45Z",
    "title_canon_sha256": "5bfcfc7efd7c713693a84379d0ae158fe57e761dd130d2d9a496232e720ada72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04620",
    "kind": "arxiv",
    "version": 2
  }
}