Pith Number

pith:SZIFOLPZ

pith:2017:SZIFOLPZ2TT77BHJVO7Q22XMRL

not attested not anchored not stored refs pending

Independence in generic incidence structures

Alex Kruckman, Gabriel Conant

arxiv:1709.09626 v2 · 2017-09-27 · math.LO · 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{SZIFOLPZ2TT77BHJVO7Q22XMRL}

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	2026-05-17T23:43:38.506993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9650572df9d4e7ff84e9abbf0d6aec8ac07b73f0f8f3c2bce89ae5e1963e2db5

Aliases

arxiv: 1709.09626 · arxiv_version: 1709.09626v2 · doi: 10.48550/arxiv.1709.09626 · pith_short_12: SZIFOLPZ2TT7 · pith_short_16: SZIFOLPZ2TT77BHJ · pith_short_8: SZIFOLPZ

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/SZIFOLPZ2TT77BHJVO7Q22XMRL \
  | 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: 9650572df9d4e7ff84e9abbf0d6aec8ac07b73f0f8f3c2bce89ae5e1963e2db5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f574c9f2c51ec31eabe324977435ebbf4b505ddec9655cc6d53373218c53f191",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-09-27T17:02:14Z",
    "title_canon_sha256": "e0034484cb013a03131c7a68695f9c51a59ac3916fd3313f5995160c9aade7b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09626",
    "kind": "arxiv",
    "version": 2
  }
}