Pith Number

pith:MX43CLZE

pith:2025:MX43CLZETWDEEQZAREYKBSK6DL

not attested not anchored not stored refs pending

Low-Rank Structured Nonparametric Prediction of Instantaneous Volatility

Donggyu Kim, Sung Hoon Choi

arxiv:2507.22173 v1 · 2025-07-29 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MX43CLZETWDEEQZAREYKBSK6DL}

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	2026-07-05T11:45:17.812670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65f9b12f249d864243208930a0c95e1ae235f41a78c2f04231734a8c46828214

Aliases

arxiv: 2507.22173 · arxiv_version: 2507.22173v1 · doi: 10.48550/arxiv.2507.22173 · pith_short_12: MX43CLZETWDE · pith_short_16: MX43CLZETWDEEQZA · pith_short_8: MX43CLZE

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/MX43CLZETWDEEQZAREYKBSK6DL \
  | 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: 65f9b12f249d864243208930a0c95e1ae235f41a78c2f04231734a8c46828214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71c8ea48c08ad9544efe71d28ee690340930263efca2ad8343ef9a065bd0df7b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2025-07-29T19:09:15Z",
    "title_canon_sha256": "2301f52e5a27e1d88837936c979d9d65f23ba94f398aca4a73f29ef1f9ee50d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.22173",
    "kind": "arxiv",
    "version": 1
  }
}