Pith Number

pith:P3LCPUW2

pith:2021:P3LCPUW2HRJY2OQR2V6BICBHXA

not attested not anchored not stored refs pending

A Fast Robust Numerical Continuation Solver to a Two-Dimensional Spectral Estimation Problem

Bin Zhu, Jiahao Liu

arxiv:2109.14926 v1 · 2021-09-30 · math.NA · cs.NA · cs.SY · eess.SP · eess.SY · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P3LCPUW2HRJY2OQR2V6BICBHXA}

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	2026-07-05T03:18:45.735241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ed627d2da3c538d3a11d57c140827b8129b3c73e0ed0f173d6ee64076254049

Aliases

arxiv: 2109.14926 · arxiv_version: 2109.14926v1 · doi: 10.48550/arxiv.2109.14926 · pith_short_12: P3LCPUW2HRJY · pith_short_16: P3LCPUW2HRJY2OQR · pith_short_8: P3LCPUW2

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/P3LCPUW2HRJY2OQR2V6BICBHXA \
  | 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: 7ed627d2da3c538d3a11d57c140827b8129b3c73e0ed0f173d6ee64076254049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0027c9ccf84a392edca1b5654f58a52973abf99f0a5b88eb529994015cb174a3",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.SY",
      "eess.SP",
      "eess.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-09-30T08:52:44Z",
    "title_canon_sha256": "430858f15db83c00b6a5263830542bee48da9c9564c80280c5e3ead246349a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.14926",
    "kind": "arxiv",
    "version": 1
  }
}