Pith Number

pith:T3J4MMZB

pith:2019:T3J4MMZBIX5CB2TVVBZYZSRUKK

not attested not anchored not stored refs pending

Computational cost for determining an approximate global minimum using the selection and crossover algorithm

Takuya Isomura

arxiv:1905.10017 v1 · 2019-05-24 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3J4MMZBIX5CB2TVVBZYZSRUKK}

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	2026-05-17T23:45:13.772566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ed3c6332145fa20ea75a8738cca3452bd8511d3b734de73d0164986d0e8bb86

Aliases

arxiv: 1905.10017 · arxiv_version: 1905.10017v1 · doi: 10.48550/arxiv.1905.10017 · pith_short_12: T3J4MMZBIX5C · pith_short_16: T3J4MMZBIX5CB2TV · pith_short_8: T3J4MMZB

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/T3J4MMZBIX5CB2TVVBZYZSRUKK \
  | 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: 9ed3c6332145fa20ea75a8738cca3452bd8511d3b734de73d0164986d0e8bb86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c464f3394a00f75ebddc4b4e053983f2c2102f233ce7b4a38051c753a8cd9c78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-05-24T03:20:46Z",
    "title_canon_sha256": "ea2ce4e773d65401dc784ec2c5ddd692e3abc3397b3f54b273a292343d1bcb4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10017",
    "kind": "arxiv",
    "version": 1
  }
}