Pith Number

pith:2BNZIZTO

pith:2015:2BNZIZTOP3GNAHO4C5YW2AQN7B

not attested not anchored not stored refs pending

JI-distributive, dually quasi-De Morgan semi-Heyting and Heyting algebras

Hanamantagouda P. Sankappanavar

arxiv:1512.05441 v3 · 2015-12-17 · 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{2BNZIZTOP3GNAHO4C5YW2AQN7B}

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	2026-05-18T00:34:24.914228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05b94666e7eccd01ddc17716d020df8653cdd001b83b6e86df7bf630d71eebf

Aliases

arxiv: 1512.05441 · arxiv_version: 1512.05441v3 · doi: 10.48550/arxiv.1512.05441 · pith_short_12: 2BNZIZTOP3GN · pith_short_16: 2BNZIZTOP3GNAHO4 · pith_short_8: 2BNZIZTO

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/2BNZIZTOP3GNAHO4C5YW2AQN7B \
  | 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: d05b94666e7eccd01ddc17716d020df8653cdd001b83b6e86df7bf630d71eebf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cc758f6acb2eba050ad548b536e6f33458d451f83a8b9a0dd405641ed7d15f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-12-17T02:23:01Z",
    "title_canon_sha256": "c89546e4653ae3fd929cd9b95d8f196b9914f82fa6e015c979622d30c01b5170"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05441",
    "kind": "arxiv",
    "version": 3
  }
}