Pith Number

pith:MEM3VZMU

pith:2019:MEM3VZMUXRBUK2VVE6OV5XQ3I5

not attested not anchored not stored refs pending

Sectionally pseudocomplemented posets

Helmut L\"anger, Ivan Chajda, Jan Paseka

arxiv:1905.09343 v1 · 2019-05-22 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MEM3VZMUXRBUK2VVE6OV5XQ3I5}

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	2026-05-17T23:45:19.538476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6119bae594bc43456ab5279d5ede1b474b8e37c10589547e5f6c208619f6cfac

Aliases

arxiv: 1905.09343 · arxiv_version: 1905.09343v1 · doi: 10.48550/arxiv.1905.09343 · pith_short_12: MEM3VZMUXRBU · pith_short_16: MEM3VZMUXRBUK2VV · pith_short_8: MEM3VZMU

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/MEM3VZMUXRBUK2VVE6OV5XQ3I5 \
  | 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: 6119bae594bc43456ab5279d5ede1b474b8e37c10589547e5f6c208619f6cfac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56004534b95cd4739e6e4b8033b6bbdfb08f2d002e12e8a6541fdbd57cce913b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-05-22T19:34:17Z",
    "title_canon_sha256": "a8f20e34f43451ad3f8b32c86852a474264aa46cc7ad3e53e4ee4acac20195ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09343",
    "kind": "arxiv",
    "version": 1
  }
}