Pith Number

pith:42F2SU6G

pith:2021:42F2SU6G7PLXT2IXTJAFFVF7ZA

not attested not anchored not stored refs pending

Constructions of tight sets of the Hermitian polar space $\mc{H}(2r-1,q^2)$

Alice M.W. Hui, Hanlin Zou, Qing Xiang, Weicong Li

arxiv:2112.10097 v2 · 2021-12-19 · 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{42F2SU6G7PLXT2IXTJAFFVF7ZA}

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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	2026-07-05T03:47:03.348501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68ba953c6fbd779e9179a4052d4bfc81a2fa4bac6f6d57467b68d9f922b8076

Aliases

arxiv: 2112.10097 · arxiv_version: 2112.10097v2 · doi: 10.48550/arxiv.2112.10097 · pith_short_12: 42F2SU6G7PLX · pith_short_16: 42F2SU6G7PLXT2IX · pith_short_8: 42F2SU6G

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/42F2SU6G7PLXT2IXTJAFFVF7ZA \
  | 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: e68ba953c6fbd779e9179a4052d4bfc81a2fa4bac6f6d57467b68d9f922b8076

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "128889359ef9798d449e0698aee45b57be1e4ce39815ac64037734f6e8afc162",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-12-19T09:41:49Z",
    "title_canon_sha256": "32ff54af6242af3d6476ae960b8fc44ed98f3a323ce8c00a3706d11becf175f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10097",
    "kind": "arxiv",
    "version": 2
  }
}