Pith Number

pith:TKPGLLYS

pith:2025:TKPGLLYSYMTM3VJ2Q23O5UHFXB

not attested not anchored not stored refs pending

On Quantum and Quantum-Inspired Maximum Likelihood Estimation and Filtering of Stochastic Volatility Models

Eric Ghysels, Hamed Mohammadbagherpoor, Jack Morgan

arxiv:2507.21337 v1 · 2025-07-28 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TKPGLLYSYMTM3VJ2Q23O5UHFXB}

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	2026-07-05T11:44:57.953625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a9e65af12c326cdd53a86b6eed0e5b864546ddab0d43fc649184cd5274f8632

Aliases

arxiv: 2507.21337 · arxiv_version: 2507.21337v1 · doi: 10.48550/arxiv.2507.21337 · pith_short_12: TKPGLLYSYMTM · pith_short_16: TKPGLLYSYMTM3VJ2 · pith_short_8: TKPGLLYS

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/TKPGLLYSYMTM3VJ2Q23O5UHFXB \
  | 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: 9a9e65af12c326cdd53a86b6eed0e5b864546ddab0d43fc649184cd5274f8632

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a9861a473ce5e44fc8d9af758b129a428df0d8b856693b10488e49a65469ec",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-28T21:06:45Z",
    "title_canon_sha256": "718aad1ba61c5448ba460482bce7c9b8443efb1985faa602046471d122639a25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21337",
    "kind": "arxiv",
    "version": 1
  }
}