Pith Number

pith:IPOHHNNL

pith:2026:IPOHHNNLZWJKNEKUXD7BMLPSPY

not attested not anchored not stored refs pending

Optimal Spectral Design with Prior Information

Anton J. Kleywegt, Johannes Milz, Mohit Singh, Weijun Xie

arxiv:2605.27837 v1 · 2026-05-27 · 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{IPOHHNNLZWJKNEKUXD7BMLPSPY}

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	2026-05-28T01:04:50.007551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43dc73b5abcd92a69154b8fe162df27e37b873eb5455678d3f55301da1e78d3c

Aliases

arxiv: 2605.27837 · arxiv_version: 2605.27837v1 · doi: 10.48550/arxiv.2605.27837 · pith_short_12: IPOHHNNLZWJK · pith_short_16: IPOHHNNLZWJKNEKU · pith_short_8: IPOHHNNL

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/IPOHHNNLZWJKNEKUXD7BMLPSPY \
  | 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: 43dc73b5abcd92a69154b8fe162df27e37b873eb5455678d3f55301da1e78d3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01341e0c75579e121c98b6e63b3083ec5772615c7558e5564439feb71f80524d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-27T01:50:29Z",
    "title_canon_sha256": "f163d28a7affd10166adfea8e2be8bf5a40dba899158103f5a2c427b2b216604"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27837",
    "kind": "arxiv",
    "version": 1
  }
}