Pith Number

pith:EEBAMAVT

pith:2015:EEBAMAVTDLCJYUKZYTGQJCIR2V

not attested not anchored not stored refs pending

A new characterization of complete Heyting and co-Heyting algebras

Francesco Ranzato

arxiv:1504.03919 v4 · 2015-04-15 · cs.LO · 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{EEBAMAVTDLCJYUKZYTGQJCIR2V}

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	2026-05-17T23:51:23.928333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21020602b31ac49c5159c4cd048911d5569096adff1b67248542416f227b0060

Aliases

arxiv: 1504.03919 · arxiv_version: 1504.03919v4 · doi: 10.48550/arxiv.1504.03919 · pith_short_12: EEBAMAVTDLCJ · pith_short_16: EEBAMAVTDLCJYUKZ · pith_short_8: EEBAMAVT

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/EEBAMAVTDLCJYUKZYTGQJCIR2V \
  | 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: 21020602b31ac49c5159c4cd048911d5569096adff1b67248542416f227b0060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "330d8b735dd2694fcdb1460af1e2c77f11f268e9fb34d36d376f6c27159f805a",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-04-15T14:06:59Z",
    "title_canon_sha256": "5e3a7873aba51f46dca373ef66eeaaefd5beefb0a3df81dcc5387d690dbebcf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03919",
    "kind": "arxiv",
    "version": 4
  }
}