Pith Number

pith:5RE7SEDY

pith:2025:5RE7SEDYZDXJVYOD7PVTHT6KSG

not attested not anchored not stored refs pending

Block-transitive t-(k^2,k,\lambda) designs associated to two dimensional projective special linear groups

Guoqiang Xiong, Haiyan Guan

arxiv:2508.19515 v1 · 2025-08-27 · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5RE7SEDYZDXJVYOD7PVTHT6KSG}

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	2026-07-05T12:00:12.961759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec49f91078c8ee9ae1c3fbeb33cfca91ac040a1e216b1054b4feb28ec936eb0c

Aliases

arxiv: 2508.19515 · arxiv_version: 2508.19515v1 · doi: 10.48550/arxiv.2508.19515 · pith_short_12: 5RE7SEDYZDXJ · pith_short_16: 5RE7SEDYZDXJVYOD · pith_short_8: 5RE7SEDY

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/5RE7SEDYZDXJVYOD7PVTHT6KSG \
  | 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: ec49f91078c8ee9ae1c3fbeb33cfca91ac040a1e216b1054b4feb28ec936eb0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b05c46f5c1e584994cc4e39b0b9ed43834f7ee7c805703a37177e55f05df5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2025-08-27T02:06:52Z",
    "title_canon_sha256": "9dcea50ed62d305958636bf6dd69022ac0354e2ca696475f9c02d3367471a0f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19515",
    "kind": "arxiv",
    "version": 1
  }
}