Pith Number

pith:WSHAU2EY

pith:2018:WSHAU2EYT4TYFCV2UYK6ZOEDTP

not attested not anchored not stored refs pending

On the complexity of detecting positive eigenvectors of nonlinear cone maps

Bas Lemmens, Lewis White

arxiv:1811.08658 v1 · 2018-11-21 · 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{WSHAU2EYT4TYFCV2UYK6ZOEDTP}

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	2026-05-18T00:00:11.966009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b48e0a68989f27828abaa615ecb8839bea967ede1835b0fc261ce602a91aa4cd

Aliases

arxiv: 1811.08658 · arxiv_version: 1811.08658v1 · doi: 10.48550/arxiv.1811.08658 · pith_short_12: WSHAU2EYT4TY · pith_short_16: WSHAU2EYT4TYFCV2 · pith_short_8: WSHAU2EY

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/WSHAU2EYT4TYFCV2UYK6ZOEDTP \
  | 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: b48e0a68989f27828abaa615ecb8839bea967ede1835b0fc261ce602a91aa4cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f487c77ce681033f5c37701c01355643294c828ac6aa8b9bb430d27ab3941f51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-21T10:06:54Z",
    "title_canon_sha256": "0676208da5e8fef7772ffdf17e7139540e0d84612e1e7daf3f49d716cd3c2ec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08658",
    "kind": "arxiv",
    "version": 1
  }
}