Pith Number

pith:WTCEVYAY

pith:2016:WTCEVYAYZEJ767DWZ6SGISKZAZ

not attested not anchored not stored refs pending

On maximal symplectic partial spreads

W. M. Kantor

arxiv:1601.04194 v1 · 2016-01-16 · 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{WTCEVYAYZEJ767DWZ6SGISKZAZ}

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	2026-05-18T01:22:45.653623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c44ae018c913ff7c76cfa4644959067aa30dc8534d98d5e7e056aa9ec71aa3

Aliases

arxiv: 1601.04194 · arxiv_version: 1601.04194v1 · doi: 10.48550/arxiv.1601.04194 · pith_short_12: WTCEVYAYZEJ7 · pith_short_16: WTCEVYAYZEJ767DW · pith_short_8: WTCEVYAY

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/WTCEVYAYZEJ767DWZ6SGISKZAZ \
  | 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: b4c44ae018c913ff7c76cfa4644959067aa30dc8534d98d5e7e056aa9ec71aa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de90b731563e3e6206fc8f83ab98e5130eb8620813fae3e8f005159f46874cf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-01-16T18:32:01Z",
    "title_canon_sha256": "f07971f4ab276dd91fd2b12901653ada73e0a8e51db3bb3dd65582f222811103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04194",
    "kind": "arxiv",
    "version": 1
  }
}