Pith Number

pith:R6Z2EYNE

pith:2025:R6Z2EYNEZ64JSAR4FODKWRQC75

not attested not anchored not stored refs pending

Beating Competitive Ratio 4 for Graphic Matroid Secretary

Danny Mittal, Dariusz R. Kowalski, Jan Olkowski, Kiarash Banihashem, MohammadTaghi Hajiaghayi, Piotr Krysta

arxiv:2501.08846 v1 · 2025-01-15 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R6Z2EYNEZ64JSAR4FODKWRQC75}

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	2026-07-05T10:01:26.987776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fb3a261a4cfb899023c2b86ab4602ff7f467264581772b9854f7c9f35e20660

Aliases

arxiv: 2501.08846 · arxiv_version: 2501.08846v1 · doi: 10.48550/arxiv.2501.08846 · pith_short_12: R6Z2EYNEZ64J · pith_short_16: R6Z2EYNEZ64JSAR4 · pith_short_8: R6Z2EYNE

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/R6Z2EYNEZ64JSAR4FODKWRQC75 \
  | 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: 8fb3a261a4cfb899023c2b86ab4602ff7f467264581772b9854f7c9f35e20660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81820facb9544f627575d9359b2db6a2cd4658f8a1b46f5f0cb2bb49e8784048",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-01-15T14:58:41Z",
    "title_canon_sha256": "56cdb7bc877b9bf7e61e0ea660784cbe1d4f4dab1f5f494b653edc4db6133a8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08846",
    "kind": "arxiv",
    "version": 1
  }
}