Pith Number

pith:Z2SSGHWS

pith:2017:Z2SSGHWSNTM47IKNVH7EFQAOSX

not attested not anchored not stored refs pending

Algorithms for Weighted Sums of Squares Decomposition of Non-negative Univariate Polynomials

Markus Schweighofer, Mohab Safey El Din, Victor Magron

arxiv:1706.03941 v1 · 2017-06-13 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z2SSGHWSNTM47IKNVH7EFQAOSX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:42:27.948204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cea5231ed26cd9cfa14da9fe42c00e95e2b302c4229c6e272dfd043829b19cd2

Aliases

arxiv: 1706.03941 · arxiv_version: 1706.03941v1 · doi: 10.48550/arxiv.1706.03941 · pith_short_12: Z2SSGHWSNTM4 · pith_short_16: Z2SSGHWSNTM47IKN · pith_short_8: Z2SSGHWS

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/Z2SSGHWSNTM47IKNVH7EFQAOSX \
  | 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: cea5231ed26cd9cfa14da9fe42c00e95e2b302c4229c6e272dfd043829b19cd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c04c90e0404fb1d124a6f74ca25394c56ba9189ec2aad03149a27600d81f38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2017-06-13T08:04:53Z",
    "title_canon_sha256": "8d3bb3262b147f5d7d5e3d92a962fd1d47816b55ed30474db5a8054fab54af71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03941",
    "kind": "arxiv",
    "version": 1
  }
}