Pith Number

pith:XH2V6HDB

pith:2013:XH2V6HDBE4CWBVGDVJ2UK5L3I5

not attested not anchored not stored refs pending

The Computational Complexity of the Game of Set and its Theoretical Applications

Michael Lampis, Valia Mitsou

arxiv:1309.6504 v1 · 2013-09-25 · cs.CC · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XH2V6HDBE4CWBVGDVJ2UK5L3I5}

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	2026-05-18T03:12:20.841449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9f55f1c61270560d4c3aa7545757b475979951d393589b08c79dd28d7d97bf9

Aliases

arxiv: 1309.6504 · arxiv_version: 1309.6504v1 · doi: 10.48550/arxiv.1309.6504 · pith_short_12: XH2V6HDBE4CW · pith_short_16: XH2V6HDBE4CWBVGD · pith_short_8: XH2V6HDB

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/XH2V6HDBE4CWBVGDVJ2UK5L3I5 \
  | 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: b9f55f1c61270560d4c3aa7545757b475979951d393589b08c79dd28d7d97bf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b1db630c4ca2575afc015def76a101f9a401e5deb57238a9dfbf315e4b69fd3",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-09-25T13:47:43Z",
    "title_canon_sha256": "9b2e87b2753f71c919c38a5d2294a34bb8ae66f712fbd321ef776539a4cb5721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6504",
    "kind": "arxiv",
    "version": 1
  }
}