Pith Number

pith:2QDYEPTF

pith:2021:2QDYEPTFMF6DETZ6BCUO3HZHN5

not attested not anchored not stored refs pending

Repeated randomized algorithm for the Multicovering Problem

Abbass Gorgi, Anand Srivastav, Mohamed Hachimi, Mourad El Ouali

arxiv:2101.09080 v1 · 2021-01-22 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QDYEPTFMF6DETZ6BCUO3HZHN5}

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	2026-07-05T02:08:53.785801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d407823e65617c324f3e08a8ed9f276f6f539aa0f8ec25e1f018de877da8df4a

Aliases

arxiv: 2101.09080 · arxiv_version: 2101.09080v1 · doi: 10.48550/arxiv.2101.09080 · pith_short_12: 2QDYEPTFMF6D · pith_short_16: 2QDYEPTFMF6DETZ6 · pith_short_8: 2QDYEPTF

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/2QDYEPTFMF6DETZ6BCUO3HZHN5 \
  | 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: d407823e65617c324f3e08a8ed9f276f6f539aa0f8ec25e1f018de877da8df4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b0e7ea85ee6412272ef5d188f6c87f4012d897ec35fb5512a1584a7da288972",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-01-22T12:29:00Z",
    "title_canon_sha256": "d5e766fca87aed3c5cf5ba9c3ee53fc8fb42645b2386fa1e9c8063d12baa30a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.09080",
    "kind": "arxiv",
    "version": 1
  }
}