Pith Number

pith:CWXA6FWG

pith:2015:CWXA6FWG7ENDNN26VROLSWNAZ2

not attested not anchored not stored refs pending

Nonnegative Trigonometric Polynomials and Sturms Theorem

Man Kam Kwong

arxiv:1507.00494 v2 · 2015-07-02 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CWXA6FWG7ENDNN26VROLSWNAZ2}

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	2026-05-18T01:37:22.842859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15ae0f16c6f91a36b75eac5cb959a0ce88ce353292dd78e0453b5abbe1fd28bc

Aliases

arxiv: 1507.00494 · arxiv_version: 1507.00494v2 · doi: 10.48550/arxiv.1507.00494 · pith_short_12: CWXA6FWG7END · pith_short_16: CWXA6FWG7ENDNN26 · pith_short_8: CWXA6FWG

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/CWXA6FWG7ENDNN26VROLSWNAZ2 \
  | 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: 15ae0f16c6f91a36b75eac5cb959a0ce88ce353292dd78e0453b5abbe1fd28bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "608aa649f0835ba20865e62003c18d5a7fd843c6b35e4b549c772f0a2cd84538",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-07-02T09:51:35Z",
    "title_canon_sha256": "345f1bd66b00ee442b267ca0c5f80e77bc89953df6715afa9debb689ac4dbd85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00494",
    "kind": "arxiv",
    "version": 2
  }
}