Pith Number

pith:5XQEG54B

pith:2017:5XQEG54BAC6QMNQQBO7IXCCFWC

not attested not anchored not stored refs pending

From Gap-ETH to FPT-Inapproximability: Clique, Dominating Set, and More

Bundit Laekhanukit, Danupon Nanongkai, Guy Kortsarz, Luca Trevisan, Marek Cygan, Parinya Chalermsook, Pasin Manurangsi

arxiv:1708.04218 v1 · 2017-08-14 · cs.CC

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

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	2026-05-18T00:38:06.767950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede043778100bd0636100bbe8b8845b0933ec6af465c3493678485a16d5584f0

Aliases

arxiv: 1708.04218 · arxiv_version: 1708.04218v1 · doi: 10.48550/arxiv.1708.04218 · pith_short_12: 5XQEG54BAC6Q · pith_short_16: 5XQEG54BAC6QMNQQ · pith_short_8: 5XQEG54B

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/5XQEG54BAC6QMNQQBO7IXCCFWC \
  | 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: ede043778100bd0636100bbe8b8845b0933ec6af465c3493678485a16d5584f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85b485ac12d92ce28257fa9a80f4b89203b1ab3227181be2ccac7fd4e751c4ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-08-14T17:27:41Z",
    "title_canon_sha256": "fbe64db801b4fe34402da7950850d5c7aff69c4b9ded34d38d7672e8dbd1dd2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04218",
    "kind": "arxiv",
    "version": 1
  }
}