Pith Number

pith:656NCYXG

pith:2018:656NCYXGW727UJ7SAGSJDYQWTP

not attested not anchored not stored refs pending

Transitive PSL(2,11)-invariant k-arcs in PG(4,q)

Eric Swartz, Torger Olson

arxiv:1804.09707 v2 · 2018-04-25 · 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{656NCYXGW727UJ7SAGSJDYQWTP}

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	2026-05-18T00:04:12.986349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f77cd162e6b7f5fa27f201a491e2169bdb3571ba05c784f7887cce8f20a5b41f

Aliases

arxiv: 1804.09707 · arxiv_version: 1804.09707v2 · doi: 10.48550/arxiv.1804.09707 · pith_short_12: 656NCYXGW727 · pith_short_16: 656NCYXGW727UJ7S · pith_short_8: 656NCYXG

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/656NCYXGW727UJ7SAGSJDYQWTP \
  | 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: f77cd162e6b7f5fa27f201a491e2169bdb3571ba05c784f7887cce8f20a5b41f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "056d316587f52ad8cf246afad377cabd74ca1483771bdf8a5573d2fa7666f4b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-25T17:55:22Z",
    "title_canon_sha256": "3938b668715851eb80d7795ca32f7fc4656c59a817c98b22bb1bee0120b51e9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09707",
    "kind": "arxiv",
    "version": 2
  }
}