Pith Number

pith:IFQCSNJ7

pith:2014:IFQCSNJ7IFYJLUTPP7EFXZD2IB

not attested not anchored not stored refs pending

Subgeometries and linear sets on a projective line

Corrado Zanella, Michel Lavrauw

arxiv:1403.5754 v2 · 2014-03-23 · 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{IFQCSNJ7IFYJLUTPP7EFXZD2IB}

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	2026-05-18T02:41:41.668207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

416029353f417095d26f7fc85be47a406882b8e9fa3f18ebec2a5e7596f01617

Aliases

arxiv: 1403.5754 · arxiv_version: 1403.5754v2 · doi: 10.48550/arxiv.1403.5754 · pith_short_12: IFQCSNJ7IFYJ · pith_short_16: IFQCSNJ7IFYJLUTP · pith_short_8: IFQCSNJ7

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/IFQCSNJ7IFYJLUTPP7EFXZD2IB \
  | 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: 416029353f417095d26f7fc85be47a406882b8e9fa3f18ebec2a5e7596f01617

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0f2f20bfff77cf587bfbce91f44aaf502d50afd087c5076f39a0ae81cc9108e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-03-23T14:15:19Z",
    "title_canon_sha256": "8d37626d07d31ea0f2c5587113092c97dd9ccd588f7589c3a64b095c4675f290"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5754",
    "kind": "arxiv",
    "version": 2
  }
}