Pith Number

pith:SB6Y4OEC

pith:2021:SB6Y4OECVIRZKXRAB3UVBK2I7L

not attested not anchored not stored refs pending

Classification of $3 \operatorname{mod} 5$ arcs in $\operatorname{PG}(3,5)$

Assia Rousseva, Ivan Landjev, Sascha Kurz

arxiv:2108.04871 v2 · 2021-08-10 · math.CO · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SB6Y4OECVIRZKXRAB3UVBK2I7L}

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	2026-07-05T05:27:16.239897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

907d8e3882aa23955e200ee950ab48faccace9022bb5731d71cefcfbab0ed553

Aliases

arxiv: 2108.04871 · arxiv_version: 2108.04871v2 · doi: 10.48550/arxiv.2108.04871 · pith_short_12: SB6Y4OECVIRZ · pith_short_16: SB6Y4OECVIRZKXRA · pith_short_8: SB6Y4OEC

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/SB6Y4OECVIRZKXRAB3UVBK2I7L \
  | 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: 907d8e3882aa23955e200ee950ab48faccace9022bb5731d71cefcfbab0ed553

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fdc18cfcd9e15e37189208530baab1e59b357468c83af693dea9d5f28690322",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-08-10T18:46:22Z",
    "title_canon_sha256": "6d13f9c62d3e285060f4df2a1f1fe799d17b519df162bea39084b17f52f539e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.04871",
    "kind": "arxiv",
    "version": 2
  }
}