Pith Number

pith:CKH7QKQZ

pith:2011:CKH7QKQZQPZYXRMMY4ADXGD6UX

not attested not anchored not stored refs pending

Results on the intersection graphs of subspaces of a vector space

N. Jafari Rad, S. H. Jafari

arxiv:1105.0803 v1 · 2011-05-04 · 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{CKH7QKQZQPZYXRMMY4ADXGD6UX}

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	2026-05-18T04:23:01.802439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

128ff82a1983f38bc58cc7003b987ea5c7cfce0649e74a028500ff544fa20484

Aliases

arxiv: 1105.0803 · arxiv_version: 1105.0803v1 · doi: 10.48550/arxiv.1105.0803 · pith_short_12: CKH7QKQZQPZY · pith_short_16: CKH7QKQZQPZYXRMM · pith_short_8: CKH7QKQZ

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/CKH7QKQZQPZYXRMMY4ADXGD6UX \
  | 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: 128ff82a1983f38bc58cc7003b987ea5c7cfce0649e74a028500ff544fa20484

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b7c52db15176716a5ee0f95a5b40929d7731cc88edb16f2275bdbdd5c66eaec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-05-04T12:29:07Z",
    "title_canon_sha256": "1f2a473226483c7992c8e5cfdccb9faddd58cc532be18df31f789215e3f0b0c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0803",
    "kind": "arxiv",
    "version": 1
  }
}