Pith Number

pith:53XNPBB6

pith:2015:53XNPBB6C7KSSK4KZHD7HNDIPW

not attested not anchored not stored refs pending

Erd\H os-Ko-Rado theorem for $\{0,\pm 1\}$-vectors

Andrey Kupavskii, Peter Frankl

arxiv:1510.03912 v2 · 2015-10-13 · math.CO · cs.DM

Open paper page JSON 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

Receipt and verification

First computed	2026-05-18T00:29:15.787297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeeed7843e17d5292b8ac9c7f3b4687d8a2f35a37c0b83e062e3dfdf5064a3c0

Aliases

arxiv: 1510.03912 · arxiv_version: 1510.03912v2 · doi: 10.48550/arxiv.1510.03912

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/53XNPBB6C7KSSK4KZHD7HNDIPW \
  | 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: eeeed7843e17d5292b8ac9c7f3b4687d8a2f35a37c0b83e062e3dfdf5064a3c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fae7e258840ce2465082ecac0e1683c0c641e8a90a69ddf14bef0950bfe35a4c",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-10-13T22:05:18Z",
    "title_canon_sha256": "49926be8f3545b683a138fda9053ca4231888f35b0e75bf19f25870adb72dd06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03912",
    "kind": "arxiv",
    "version": 2
  }
}