Pith Number

pith:NQZCLZXM

pith:2021:NQZCLZXMMUQSATBOSGYNG7BXEW

not attested not anchored not stored refs pending

Algebraic properties of Hermitian sums of squares, II

Dusty Grundmeier, Hal Schenck, Jennifer Brooks

arxiv:2111.03192 v1 · 2021-11-04 · math.CV · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQZCLZXMMUQSATBOSGYNG7BXEW}

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	2026-07-05T03:29:21.748902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c3225e6ec6521204c2e91b0d37c3725abea7d39e95329189b345a29c287e9c8

Aliases

arxiv: 2111.03192 · arxiv_version: 2111.03192v1 · doi: 10.48550/arxiv.2111.03192 · pith_short_12: NQZCLZXMMUQS · pith_short_16: NQZCLZXMMUQSATBO · pith_short_8: NQZCLZXM

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/NQZCLZXMMUQSATBOSGYNG7BXEW \
  | 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: 6c3225e6ec6521204c2e91b0d37c3725abea7d39e95329189b345a29c287e9c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51761c29a6164f6ffd7beb545b5f6044a7b7335bfe7241c521d1f5286dfce02c",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2021-11-04T23:11:45Z",
    "title_canon_sha256": "1733a5201df8567235a0ff679cfe81f779eb88e650a2cbea2cc71f5e9ca1a8f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.03192",
    "kind": "arxiv",
    "version": 1
  }
}