Pith Number

pith:HQ43OPWG

pith:2012:HQ43OPWGT72RDPUUFSUQLN3CI3

not attested not anchored not stored refs pending

Online Local Volatility Calibration by Convex Regularization with Morozov's Principle and Convergence Rates

Jorge P. Zubelli, Vinicius V. L. Albani

arxiv:1211.0170 v3 · 2012-11-01 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQ43OPWGT72RDPUUFSUQLN3CI3}

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	2026-05-18T02:44:23.618190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c39b73ec69ff511be942ca905b76246c13aa40ad9b58bd0cb130d846653347e

Aliases

arxiv: 1211.0170 · arxiv_version: 1211.0170v3 · doi: 10.48550/arxiv.1211.0170 · pith_short_12: HQ43OPWGT72R · pith_short_16: HQ43OPWGT72RDPUU · pith_short_8: HQ43OPWG

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/HQ43OPWGT72RDPUUFSUQLN3CI3 \
  | 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: 3c39b73ec69ff511be942ca905b76246c13aa40ad9b58bd0cb130d846653347e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c3663bcce63190fa8b8e3e8d763c34a5b9e44f8ccb78c142c5010d02d3dab9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-11-01T13:18:30Z",
    "title_canon_sha256": "ee7d67fd5b3d083282c88460625f1f1ff59a1719500f55235c11553ff7dd6b56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0170",
    "kind": "arxiv",
    "version": 3
  }
}