Pith Number

pith:JTYY6TZ6

pith:2026:JTYY6TZ6Y4U7NFX4WMQ32R7VW3

not attested not anchored not stored refs pending

A topos for \'etale-finite Heyting algebras

Igor Arrieta, Marco Abbadini, Rodrigo Nicolau Almeida

arxiv:2606.03861 v1 · 2026-06-02 · math.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTYY6TZ6Y4U7NFX4WMQ32R7VW3}

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	2026-06-03T02:06:04.538712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cf18f4f3ec729f696fcb321bd47f5b6da1d47d42a3da242aa068d3f72a547ed

Aliases

arxiv: 2606.03861 · arxiv_version: 2606.03861v1 · doi: 10.48550/arxiv.2606.03861 · pith_short_12: JTYY6TZ6Y4U7 · pith_short_16: JTYY6TZ6Y4U7NFX4 · pith_short_8: JTYY6TZ6

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/JTYY6TZ6Y4U7NFX4WMQ32R7VW3 \
  | 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: 4cf18f4f3ec729f696fcb321bd47f5b6da1d47d42a3da242aa068d3f72a547ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2c654d2244b39a6879aaa9897eeee543021342d240a7a376e1a00c67bc9329a",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2026-06-02T16:34:52Z",
    "title_canon_sha256": "15fd6ad2836c7fed98ccb72547a7023c103307dceee51f7a9bc09b36cca61486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03861",
    "kind": "arxiv",
    "version": 1
  }
}