Pith Number

pith:OQCP5Q6F

pith:2018:OQCP5Q6FXPB2HAVLZYPKJZGZ6C

not attested not anchored not stored refs pending

Solving Systems of Quadratic Equations via Exponential-type Gradient Descent Algorithm

Meng Huang, Zhiqiang Xu

arxiv:1806.00904 v1 · 2018-06-04 · math.NA · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQCP5Q6FXPB2HAVLZYPKJZGZ6C}

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	2026-05-18T00:14:18.065071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7404fec3c5bbc3a382abce1ea4e4d9f0ade8bcce64809ebe09f92cd5e5b1e598

Aliases

arxiv: 1806.00904 · arxiv_version: 1806.00904v1 · doi: 10.48550/arxiv.1806.00904 · pith_short_12: OQCP5Q6FXPB2 · pith_short_16: OQCP5Q6FXPB2HAVL · pith_short_8: OQCP5Q6F

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/OQCP5Q6FXPB2HAVLZYPKJZGZ6C \
  | 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: 7404fec3c5bbc3a382abce1ea4e4d9f0ade8bcce64809ebe09f92cd5e5b1e598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b82fd885f2608079b04fdcbb0c40f105d9588314c41abb28f585e97a57750541",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-06-04T00:37:29Z",
    "title_canon_sha256": "792cc52ac2e2954a16060769850b80cac82e751cbe8ebeff003fd9590c179bfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00904",
    "kind": "arxiv",
    "version": 1
  }
}