Pith Number

pith:KONA5E3M

pith:2015:KONA5E3MMHPB7IGXC2ZH4GBX5J

not attested not anchored not stored refs pending

Combinatorial Optimization Algorithms via Polymorphisms

Jonah Brown-Cohen, Prasad Raghavendra

arxiv:1501.01598 v1 · 2015-01-07 · 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{KONA5E3MMHPB7IGXC2ZH4GBX5J}

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	2026-05-18T02:29:53.543119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

539a0e936c61de1fa0d716b27e1837ea768780083f2494515c570f44022f508e

Aliases

arxiv: 1501.01598 · arxiv_version: 1501.01598v1 · doi: 10.48550/arxiv.1501.01598 · pith_short_12: KONA5E3MMHPB · pith_short_16: KONA5E3MMHPB7IGX · pith_short_8: KONA5E3M

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/KONA5E3MMHPB7IGXC2ZH4GBX5J \
  | 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: 539a0e936c61de1fa0d716b27e1837ea768780083f2494515c570f44022f508e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f830c35d7cbdca52d9efc07b0ae0a5447ae725a38d6533eb84a649187164cd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-01-07T19:17:25Z",
    "title_canon_sha256": "857154cf3c0c57a568c3e27d1638dc65f7086d6231fc2b44a04c912e2a80016a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01598",
    "kind": "arxiv",
    "version": 1
  }
}