Pith Number

pith:EPOEBVZG

pith:2010:EPOEBVZGDQUGMH66Y7FAO4Z4GC

not attested not anchored not stored refs pending

Large convexly independent subsets of Minkowski sums

Konrad J. Swanepoel, Pavel Valtr

arxiv:1007.2775 v1 · 2010-07-16 · math.CO · math.MG

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	2026-05-18T04:14:46.169468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23dc40d7261c28661fdec7ca07733c30acfbaac4b1b02f83039dca019df1e2c7

Aliases

arxiv: 1007.2775 · arxiv_version: 1007.2775v1 · doi: 10.48550/arxiv.1007.2775 · pith_short_12: EPOEBVZGDQUG · pith_short_16: EPOEBVZGDQUGMH66 · pith_short_8: EPOEBVZG

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/EPOEBVZGDQUGMH66Y7FAO4Z4GC \
  | 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: 23dc40d7261c28661fdec7ca07733c30acfbaac4b1b02f83039dca019df1e2c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a8777f9297b2c500c3e99e61e09a155d90e4030783b816887b075c7e2b73abb",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-07-16T13:45:56Z",
    "title_canon_sha256": "05b36a983115f2c9dcbca0e05e74f729940f082718da85d4bc14325efddcc9d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2775",
    "kind": "arxiv",
    "version": 1
  }
}