Pith Number

pith:NGPHLCIP

pith:2014:NGPHLCIPCOFPRKIWRMKBQEGD77

not attested not anchored not stored refs pending

Polynomial Kernels and User Reductions for the Workflow Satisfiability Problem

Gregory Gutin, Magnus Wahlstr\"om, Stefan Kratsch

arxiv:1409.7261 v1 · 2014-09-25 · cs.CC · cs.DS

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	2026-05-18T02:41:58.796180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

699e75890f138af8a9168b141810c3ffd6389bd663e109d6fca600c02b71a607

Aliases

arxiv: 1409.7261 · arxiv_version: 1409.7261v1 · doi: 10.48550/arxiv.1409.7261 · pith_short_12: NGPHLCIPCOFP · pith_short_16: NGPHLCIPCOFPRKIW · pith_short_8: NGPHLCIP

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/NGPHLCIPCOFPRKIWRMKBQEGD77 \
  | 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: 699e75890f138af8a9168b141810c3ffd6389bd663e109d6fca600c02b71a607

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1bf315ea5b9ed5d5e5102466d95c5599a3f975c355bb8995e6d1228cadccde9",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-09-25T14:03:18Z",
    "title_canon_sha256": "836160565b0029fbcb17304cba609d3809570ecc8c1abe0a83ea21426bfda28d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7261",
    "kind": "arxiv",
    "version": 1
  }
}