Pith Number

pith:ZTJ4YGC5

pith:2017:ZTJ4YGC52TOOIDDIYDKO6YQM4X

not attested not anchored not stored refs pending

Semi-Static and Sparse Variance-Optimal Hedging

Martin Haubold, Martin Keller-Ressel, Paolo Di Tella

arxiv:1709.05519 v1 · 2017-09-16 · q-fin.MF · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTJ4YGC52TOOIDDIYDKO6YQM4X}

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	2026-05-18T00:35:00.474367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccd3cc185dd4dce40c68c0d4ef620ce5e65c086f5762bea70591814d8818a0ed

Aliases

arxiv: 1709.05519 · arxiv_version: 1709.05519v1 · doi: 10.48550/arxiv.1709.05519 · pith_short_12: ZTJ4YGC52TOO · pith_short_16: ZTJ4YGC52TOOIDDI · pith_short_8: ZTJ4YGC5

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/ZTJ4YGC52TOOIDDIYDKO6YQM4X \
  | 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: ccd3cc185dd4dce40c68c0d4ef620ce5e65c086f5762bea70591814d8818a0ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e6f1fa23b5289a53be3887c06b5e0f6af82e4e07f1dece4496a4d49e8e48d4c",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2017-09-16T14:24:55Z",
    "title_canon_sha256": "b3a736195966d615de5d423d93146c9575e5487dd1f378e4b41661ada5a349ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05519",
    "kind": "arxiv",
    "version": 1
  }
}