Pith Number

pith:FWUTXHXT

pith:2011:FWUTXHXTYWKJYEOEQ2U77OZGIA

not attested not anchored not stored refs pending

Two methods for solving optimization problems arising in electronic measurements and electrical engineering

Anna Molinaro, Domenico Grimaldi, Pasquale Daponte, Yaroslav D. Sergeyev

arxiv:1103.3801 v1 · 2011-03-19 · math.NA · cs.CE · cs.NA · math.OC · physics.comp-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{FWUTXHXTYWKJYEOEQ2U77OZGIA}

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	2026-05-18T04:26:22.285848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2da93b9ef3c5949c11c486a9ffbb264036405c37853848f34b2ef05995901de1

Aliases

arxiv: 1103.3801 · arxiv_version: 1103.3801v1 · doi: 10.48550/arxiv.1103.3801 · pith_short_12: FWUTXHXTYWKJ · pith_short_16: FWUTXHXTYWKJYEOE · pith_short_8: FWUTXHXT

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/FWUTXHXTYWKJYEOEQ2U77OZGIA \
  | 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: 2da93b9ef3c5949c11c486a9ffbb264036405c37853848f34b2ef05995901de1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f89a651189b76ee85bb916b9b1d536bf99d06aa963eaacb860090751e40c76b",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "math.OC",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-19T18:38:52Z",
    "title_canon_sha256": "96f09a79c4a1a2f50154ffe63d9d0d2ccd5442dcff287739c90335b9d4a8d607"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3801",
    "kind": "arxiv",
    "version": 1
  }
}