Pith Number

pith:E4PGDR4B

pith:2017:E4PGDR4BS57TCC2NNTFZUC2H7K

not attested not anchored not stored refs pending

Positive polynomials on unbounded domains

Javer Pena, Juan C. Vera, Luis F. Zuluaga

arxiv:1709.03435 v1 · 2017-09-11 · 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{E4PGDR4BS57TCC2NNTFZUC2H7K}

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	2026-05-18T00:35:36.687159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

271e61c781977f310b4d6ccb9a0b47faa61e0f977cdb88114efbb5c695adb8de

Aliases

arxiv: 1709.03435 · arxiv_version: 1709.03435v1 · doi: 10.48550/arxiv.1709.03435 · pith_short_12: E4PGDR4BS57T · pith_short_16: E4PGDR4BS57TCC2N · pith_short_8: E4PGDR4B

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/E4PGDR4BS57TCC2NNTFZUC2H7K \
  | 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: 271e61c781977f310b4d6ccb9a0b47faa61e0f977cdb88114efbb5c695adb8de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2703399235b182a8ae45c9b7969f984b664421efd1b12d5e24c64a1ba2772c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-09-11T15:25:39Z",
    "title_canon_sha256": "acec8ca4a49146f03dd8fb98d52dcb9e05f802c5e41e9aa6603fbeddc85a7e7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03435",
    "kind": "arxiv",
    "version": 1
  }
}