Pith Number

pith:2BDW7643

pith:2023:2BDW7643GQJARIC3ZYGLK6CVR4

not attested not anchored not stored refs pending

The $L_q$-weighted dual programming of the linear Chebyshev approximation and an interior-point method

Lei-Hong Zhang, Linyi Yang, Ya-Nan Zhang

arxiv:2308.07636 v1 · 2023-08-15 · math.NA · cs.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{2BDW7643GQJARIC3ZYGLK6CVR4}

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	2026-07-05T06:41:28.846626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0476ffb9b341208a05bce0cb578558f0bfed8599dd8b6700572707e2f5d293a

Aliases

arxiv: 2308.07636 · arxiv_version: 2308.07636v1 · doi: 10.48550/arxiv.2308.07636 · pith_short_12: 2BDW7643GQJA · pith_short_16: 2BDW7643GQJARIC3 · pith_short_8: 2BDW7643

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/2BDW7643GQJARIC3ZYGLK6CVR4 \
  | 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: d0476ffb9b341208a05bce0cb578558f0bfed8599dd8b6700572707e2f5d293a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71a0a0d772c29cc2a479b84d7c7dcc07a927c1d16389d99d34e8d100168f2f1f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-08-15T08:33:15Z",
    "title_canon_sha256": "2c2444060a385d69772a665bed17c0913d53c1f62250cf25e2445e0d0f6f48e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.07636",
    "kind": "arxiv",
    "version": 1
  }
}