Pith Number

pith:65UI62QS

pith:2019:65UI62QSDK6KQB5KPYKDAIZNUP

not attested not anchored not stored refs pending

Theory of functional connections applied to quadratic and nonlinear programming under equality constraints

Daniele Mortari, Tina Mai

arxiv:1910.04917 v2 · 2019-10-11 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65UI62QSDK6KQB5KPYKDAIZNUP}

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	2026-07-05T04:51:33.667547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7688f6a121abca807aa7e1430232da3e25176f3ccf38244b4a8d1b962183418

Aliases

arxiv: 1910.04917 · arxiv_version: 1910.04917v2 · doi: 10.48550/arxiv.1910.04917 · pith_short_12: 65UI62QSDK6K · pith_short_16: 65UI62QSDK6KQB5K · pith_short_8: 65UI62QS

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/65UI62QSDK6KQB5KPYKDAIZNUP \
  | 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: f7688f6a121abca807aa7e1430232da3e25176f3ccf38244b4a8d1b962183418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "666cf5b94f75aa4ed4532ba6280a32f07f1834176e804e12bf9fa319628fdb9d",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-10-11T00:03:55Z",
    "title_canon_sha256": "6e449437c3758bf2fba124bcf8bf361775ddaf78aa130c6317dc6e0467d9658b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.04917",
    "kind": "arxiv",
    "version": 2
  }
}