Pith Number

pith:DREWUTNW

pith:2024:DREWUTNWM4INIFCWURKIH4HVPT

not attested not anchored not stored refs pending

Gripenberg-like algorithm for the lower spectral radius

Francesco Paolo Maiale, Nicola Guglielmi

arxiv:2409.16822 v1 · 2024-09-25 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DREWUTNWM4INIFCWURKIH4HVPT}

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.

Cited by

1 paper in Pith

Continuity and approximability of competitive spectral radii

Receipt and verification

First computed	2026-07-05T09:11:39.954841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c496a4db66710d41456a45483f0f57cc332d681b0d55731e00e36ce89576bb3

Aliases

arxiv: 2409.16822 · arxiv_version: 2409.16822v1 · doi: 10.48550/arxiv.2409.16822 · pith_short_12: DREWUTNWM4IN · pith_short_16: DREWUTNWM4INIFCW · pith_short_8: DREWUTNW

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/DREWUTNWM4INIFCWURKIH4HVPT \
  | 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: 1c496a4db66710d41456a45483f0f57cc332d681b0d55731e00e36ce89576bb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6130364658fb44e2a34b08a41e5a5686cd397b3525477fa611391d1b4601158d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-09-25T11:19:44Z",
    "title_canon_sha256": "91b32b5b720ed8c1c6b1943df0804f4ead262fa0bab45bd71b4898a297f54ba3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.16822",
    "kind": "arxiv",
    "version": 1
  }
}