Pith Number

pith:ALK7QP76

pith:2014:ALK7QP76DCZSKB7PW3E5UJNBXD

not attested not anchored not stored refs pending

A note on regular De Morgan semi-Heyting algebras

Hanamantagouda P. Sankappanavar

arxiv:1411.2062 v1 · 2014-11-08 · 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{ALK7QP76DCZSKB7PW3E5UJNBXD}

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	2026-05-18T02:38:19.565256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02d5f83ffe18b32507efb6c9da25a1b8eb6502538d515438878749116759c5a7

Aliases

arxiv: 1411.2062 · arxiv_version: 1411.2062v1 · doi: 10.48550/arxiv.1411.2062 · pith_short_12: ALK7QP76DCZS · pith_short_16: ALK7QP76DCZSKB7P · pith_short_8: ALK7QP76

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/ALK7QP76DCZSKB7PW3E5UJNBXD \
  | 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: 02d5f83ffe18b32507efb6c9da25a1b8eb6502538d515438878749116759c5a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9df1888c80fa0985e09362f64d857838751a201ad5ec269b9491741dfb19ad81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-11-08T00:36:16Z",
    "title_canon_sha256": "e15feea764c18f59c8bb4a956f4b0c7e2efe10aa641a2a44df9a480cd7eaf23e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2062",
    "kind": "arxiv",
    "version": 1
  }
}