Pith Number

pith:2C5SMMMN

pith:2019:2C5SMMMNO4NGNIV2NXDT26MCGC

not attested not anchored not stored refs pending

On some conjectures by Lu and Wenzel

Fagui Li, Jianquan Ge, Yi Zhou, Zhiqin Lu

arxiv:1908.06624 v1 · 2019-08-19 · math.DG · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2C5SMMMNO4NGNIV2NXDT26MCGC}

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	2026-07-05T00:39:13.438641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0bb26318d771a66a2ba6dc73d798230b6c2ef8b666b11aa5878ffc08b8aedd7

Aliases

arxiv: 1908.06624 · arxiv_version: 1908.06624v1 · doi: 10.48550/arxiv.1908.06624 · pith_short_12: 2C5SMMMNO4NG · pith_short_16: 2C5SMMMNO4NGNIV2 · pith_short_8: 2C5SMMMN

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/2C5SMMMNO4NGNIV2NXDT26MCGC \
  | 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: d0bb26318d771a66a2ba6dc73d798230b6c2ef8b666b11aa5878ffc08b8aedd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14f51edf90807d3c00d3b9a627210d420c69b2f61defad5ce99a675a3e58afa4",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-08-19T07:34:56Z",
    "title_canon_sha256": "94cdcf3962d371adb7996072c780de7a3e4a16cb2b1e82b8728f6d8941ebefb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06624",
    "kind": "arxiv",
    "version": 1
  }
}