Pith Number

pith:H5HLRF42

pith:2008:H5HLRF42OTTDKO6ZH2XWCP43YT

not attested not anchored not stored refs pending

On sumfree subsets of hypercubes

Daniel Katz

arxiv:0802.0182 v2 · 2008-02-01 · math.NT · 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{H5HLRF42OTTDKO6ZH2XWCP43YT}

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	2026-05-18T02:16:01.378791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f4eb8979a74e6353bd93eaf613f9bc4c700216026f04500df22de7e54f30f12

Aliases

arxiv: 0802.0182 · arxiv_version: 0802.0182v2 · doi: 10.48550/arxiv.0802.0182 · pith_short_12: H5HLRF42OTTD · pith_short_16: H5HLRF42OTTDKO6Z · pith_short_8: H5HLRF42

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/H5HLRF42OTTDKO6ZH2XWCP43YT \
  | 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: 3f4eb8979a74e6353bd93eaf613f9bc4c700216026f04500df22de7e54f30f12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ef9e9cca968f14a21cc15f6119adbcef30414ab16f529eeeedd81e2d8b35134",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2008-02-01T19:01:27Z",
    "title_canon_sha256": "a978a35167490278a97e24a8581c1c7a33444fa8c9f523144007c3e88e60d871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.0182",
    "kind": "arxiv",
    "version": 2
  }
}