Pith Number

pith:HZAUK5UA

pith:2018:HZAUK5UA75V4BRLHPFFBXWS5EZ

not attested not anchored not stored refs pending

An Optimal Extraction Problem with Price Impact

Giorgio Ferrari, Torben Koch

arxiv:1812.01270 v1 · 2018-12-04 · math.OC · q-fin.MF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZAUK5UA75V4BRLHPFFBXWS5EZ}

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	2026-05-17T23:59:12.937259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e41457680ff6bc0c567794a1bda5d265e68e1f304c315fdad38c8e82e1de7cf

Aliases

arxiv: 1812.01270 · arxiv_version: 1812.01270v1 · doi: 10.48550/arxiv.1812.01270 · pith_short_12: HZAUK5UA75V4 · pith_short_16: HZAUK5UA75V4BRLH · pith_short_8: HZAUK5UA

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/HZAUK5UA75V4BRLHPFFBXWS5EZ \
  | 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: 3e41457680ff6bc0c567794a1bda5d265e68e1f304c315fdad38c8e82e1de7cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5948be142e5c33c749a1b9ebb7083f72828bb6b6e4e4bd1c0367d5bf8011808",
    "cross_cats_sorted": [
      "q-fin.MF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-12-04T08:22:14Z",
    "title_canon_sha256": "7a0a8405e8744e0c288f878eb0ce79b7abc7966bab4eda8f9ad792476132dd46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01270",
    "kind": "arxiv",
    "version": 1
  }
}