Pith Number

pith:XHYDSBGW

pith:2015:XHYDSBGWPLKTJVMU7KMK2ABEM2

not attested not anchored not stored refs pending

Selfish Knapsack

Itai Feigenbaum, Matthew P. Johnson

arxiv:1510.07358 v2 · 2015-10-26 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHYDSBGWPLKTJVMU7KMK2ABEM2}

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	2026-05-18T01:19:53.504263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9f03904d67ad534d594fa98ad002466a20ea7be2af40fc0c754fcdc66dce8a8

Aliases

arxiv: 1510.07358 · arxiv_version: 1510.07358v2 · doi: 10.48550/arxiv.1510.07358 · pith_short_12: XHYDSBGWPLKT · pith_short_16: XHYDSBGWPLKTJVMU · pith_short_8: XHYDSBGW

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/XHYDSBGWPLKTJVMU7KMK2ABEM2 \
  | 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: b9f03904d67ad534d594fa98ad002466a20ea7be2af40fc0c754fcdc66dce8a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d35244756accfd263812223b55964f8d92455df8ca77582aea19bdb70a0f339",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2015-10-26T02:58:08Z",
    "title_canon_sha256": "cdf07353e553d2ef90d94eeca99fff8118a3951e2ccb4707cf6c959abd7fd788"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07358",
    "kind": "arxiv",
    "version": 2
  }
}