Pith Number

pith:HXY5VPTD

pith:2018:HXY5VPTDSXFNULCHPD6TKNXZAP

not attested not anchored not stored refs pending

Iterative Refinement of A Modified Lavrentiev Regularization Method for De-convolution of the Discrete Helmholtz Type Differential Filter

Ming Zhong, Nathaniel Mays

arxiv:1801.08913 v1 · 2018-01-26 · 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{HXY5VPTDSXFNULCHPD6TKNXZAP}

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	2026-05-18T00:25:02.697230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3df1dabe6395cada2c4778fd3536f903dfb43aa896efe0f20683c2a8ba071994

Aliases

arxiv: 1801.08913 · arxiv_version: 1801.08913v1 · doi: 10.48550/arxiv.1801.08913 · pith_short_12: HXY5VPTDSXFN · pith_short_16: HXY5VPTDSXFNULCH · pith_short_8: HXY5VPTD

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/HXY5VPTDSXFNULCHPD6TKNXZAP \
  | 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: 3df1dabe6395cada2c4778fd3536f903dfb43aa896efe0f20683c2a8ba071994

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72d42cff3903b17c66447218ebd38c87c2801bf8ac1afec7ad5d43847639372",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-26T17:48:18Z",
    "title_canon_sha256": "7800f3b588c9d9cccc40a176d0b919209a6de236cd81fbb208b6941a170ff14a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08913",
    "kind": "arxiv",
    "version": 1
  }
}