Pith Number

pith:BAZBJZDJ

pith:2014:BAZBJZDJRFPAABHLKMSVEAIUQY

not attested not anchored not stored refs pending

Cross-Intersecting Erd\H{o}s-Ko-Rado Sets in Finite Classical Polar Spaces

Ferdinand Ihringer

arxiv:1409.3606 v1 · 2014-09-11 · 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{BAZBJZDJRFPAABHLKMSVEAIUQY}

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	2026-05-18T02:43:00.154185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

083214e469895e0004eb532552011486372d80d411f3ff6a756357071f466a7e

Aliases

arxiv: 1409.3606 · arxiv_version: 1409.3606v1 · doi: 10.48550/arxiv.1409.3606 · pith_short_12: BAZBJZDJRFPA · pith_short_16: BAZBJZDJRFPAABHL · pith_short_8: BAZBJZDJ

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/BAZBJZDJRFPAABHLKMSVEAIUQY \
  | 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: 083214e469895e0004eb532552011486372d80d411f3ff6a756357071f466a7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c575868e84fcdbc0f6060078eb1f5aa2285aa5737ea80594c0a3b54049bf2ec2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-11T21:29:17Z",
    "title_canon_sha256": "9ab8ceeb757168c3d5a69daaf5521a59f8c8d592ec9cdb92432786ee19e25ff2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3606",
    "kind": "arxiv",
    "version": 1
  }
}