Pith Number

pith:XPJWWOMA

pith:2018:XPJWWOMAFZQFS72EDYZALYM4KV

not attested not anchored not stored refs pending

Algebraic proof theory for LE-logics

Alessandra Palmigiano, Apostolos Tzimoulis, Fei Liang, Giuseppe Greco, Peter Jipsen

arxiv:1808.04642 v2 · 2018-08-14 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPJWWOMAFZQFS72EDYZALYM4KV}

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.

Cited by

1 paper in Pith

Vector spaces as Kripke frames

Receipt and verification

First computed	2026-07-05T07:33:45.199739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbd36b39802e60597f441e3205e19c55515872f4038c8439b5f01ea75bfa6e48

Aliases

arxiv: 1808.04642 · arxiv_version: 1808.04642v2 · doi: 10.48550/arxiv.1808.04642 · pith_short_12: XPJWWOMAFZQF · pith_short_16: XPJWWOMAFZQFS72E · pith_short_8: XPJWWOMA

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/XPJWWOMAFZQFS72EDYZALYM4KV \
  | 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: bbd36b39802e60597f441e3205e19c55515872f4038c8439b5f01ea75bfa6e48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9c3ad8cd99dc4213e23ddb4b2a9c03b2173bc8929c04334c0e74da7e9b8f26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-08-14T11:42:14Z",
    "title_canon_sha256": "977514b0df46738b931f0bd114257b06452196353e7d2afdccfc3562a401541a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04642",
    "kind": "arxiv",
    "version": 2
  }
}