Pith Number

pith:YYWKAI3B

pith:2021:YYWKAI3BGXADW4AYG2F46RCXRV

not attested not anchored not stored refs pending

A Granular Sieving Algorithm for Deterministic Global Optimization

Lei Dai, Liming Zhang, Tao Qian, Zehua Chen

arxiv:2107.06581 v1 · 2021-07-14 · math.OC · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYWKAI3BGXADW4AYG2F46RCXRV}

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	2026-07-05T02:57:59.595271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62ca0236135c03b7018368bcf44578d4a40458a03b268c740dcd5a8cc954f4a

Aliases

arxiv: 2107.06581 · arxiv_version: 2107.06581v1 · doi: 10.48550/arxiv.2107.06581 · pith_short_12: YYWKAI3BGXAD · pith_short_16: YYWKAI3BGXADW4AY · pith_short_8: YYWKAI3B

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/YYWKAI3BGXADW4AYG2F46RCXRV \
  | 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: c62ca0236135c03b7018368bcf44578d4a40458a03b268c740dcd5a8cc954f4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0122261207ab0ec3e932e0322a69a744c8ea3e69372ccf1e74a91a6c2b01fabe",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-07-14T10:03:03Z",
    "title_canon_sha256": "f21972802d2d159ebe3e43c2eea8f308ec3bcfea143522bffbfb968c342cfb99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06581",
    "kind": "arxiv",
    "version": 1
  }
}