Pith Number

pith:2CD6LIO3

pith:2017:2CD6LIO354NK67JAZGVG763ANT

not attested not anchored not stored refs pending

A combinatorial characterisation of embedded polar spaces

Jan De Beule, Maarten De Boeck

arxiv:1709.05905 v2 · 2017-09-18 · 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{2CD6LIO354NK67JAZGVG763ANT}

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	2026-05-18T00:18:00.159394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d087e5a1dbef1aaf7d20c9aa6ffb606cec64843fc3f9478fc5cf57407b64afd6

Aliases

arxiv: 1709.05905 · arxiv_version: 1709.05905v2 · doi: 10.48550/arxiv.1709.05905 · pith_short_12: 2CD6LIO354NK · pith_short_16: 2CD6LIO354NK67JA · pith_short_8: 2CD6LIO3

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/2CD6LIO354NK67JAZGVG763ANT \
  | 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: d087e5a1dbef1aaf7d20c9aa6ffb606cec64843fc3f9478fc5cf57407b64afd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcdd1097af80e7907115f63b495eb98144a638692bbdf8ef5b37ca8a51cc097f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-18T13:05:16Z",
    "title_canon_sha256": "a8557884c6235cc271d468c9ca41d2d1dcae08d86b3baf665ae43dc30e7c572f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05905",
    "kind": "arxiv",
    "version": 2
  }
}