Pith Number

pith:DXDFVBEI

pith:2018:DXDFVBEI7EXNV3WLAL2767IN5F

not attested not anchored not stored refs pending

Affine forward variance models

Jim Gatheral, Martin Keller-Ressel

arxiv:1801.06416 v2 · 2018-01-19 · 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{DXDFVBEI7EXNV3WLAL2767IN5F}

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	2026-05-18T00:02:01.734800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dc65a8488f92edaeecb02f5ff7d0de9487d53bdce74eba1958b7ad816899938

Aliases

arxiv: 1801.06416 · arxiv_version: 1801.06416v2 · doi: 10.48550/arxiv.1801.06416 · pith_short_12: DXDFVBEI7EXN · pith_short_16: DXDFVBEI7EXNV3WL · pith_short_8: DXDFVBEI

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/DXDFVBEI7EXNV3WLAL2767IN5F \
  | 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: 1dc65a8488f92edaeecb02f5ff7d0de9487d53bdce74eba1958b7ad816899938

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19009ae6ca535ff17408d3c1d19084bc8e269fad7ff93487c681f35d27a0b8d3",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.MF",
    "submitted_at": "2018-01-19T14:29:02Z",
    "title_canon_sha256": "fa9ea3272a74ae715c4dc9cdad93b808b0977ca68745ac5e337eba146cc02c5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06416",
    "kind": "arxiv",
    "version": 2
  }
}