Pith Number

pith:KETD7IWS

pith:2016:KETD7IWSA37DWQUXSG5PFCXCFF

not attested not anchored not stored refs pending

DDVV-type inequality for Hermitian matrices

Hangyu You, Jianquan Ge, Song Xu, Yi Zhou

arxiv:1610.05020 v2 · 2016-10-17 · math.DG · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KETD7IWSA37DWQUXSG5PFCXCFF}

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	2026-05-18T00:45:58.554098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51263fa2d206fe3b429791baf28ae2295f84b7bc52d4e6ac29193526127a45ba

Aliases

arxiv: 1610.05020 · arxiv_version: 1610.05020v2 · doi: 10.48550/arxiv.1610.05020 · pith_short_12: KETD7IWSA37D · pith_short_16: KETD7IWSA37DWQUX · pith_short_8: KETD7IWS

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/KETD7IWSA37DWQUXSG5PFCXCFF \
  | 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: 51263fa2d206fe3b429791baf28ae2295f84b7bc52d4e6ac29193526127a45ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dad74a1012616c74b04da6538541d9c68e30266873e5838a19428bf2ccf037a6",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-10-17T09:06:36Z",
    "title_canon_sha256": "35ea20a1a1fe7ce517be9cc22efe2423cf8b59cef4107e94da11fe6ef52c5157"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05020",
    "kind": "arxiv",
    "version": 2
  }
}