Pith Number

pith:MDLM4AKL

pith:2008:MDLM4AKLW2Y6UV42PGJFGPPPWL

not attested not anchored not stored refs pending

Semiring Properties of Heyting Algebras

Amit Raj, Mahesh Rudrachar, Shrisha Rao

arxiv:0812.3754 v4 · 2008-12-19 · math.RA · 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{MDLM4AKLW2Y6UV42PGJFGPPPWL}

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	2026-05-18T01:04:09.741730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60d6ce014bb6b1ea579a7992533defb2f15d73947506385520c3d6d7a15a8659

Aliases

arxiv: 0812.3754 · arxiv_version: 0812.3754v4 · doi: 10.48550/arxiv.0812.3754 · pith_short_12: MDLM4AKLW2Y6 · pith_short_16: MDLM4AKLW2Y6UV42 · pith_short_8: MDLM4AKL

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/MDLM4AKLW2Y6UV42PGJFGPPPWL \
  | 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: 60d6ce014bb6b1ea579a7992533defb2f15d73947506385520c3d6d7a15a8659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9a16dc8485c631ff6f80d455dbdaa2722b21a8c9307d5b167bf0511d0a16286",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2008-12-19T11:38:35Z",
    "title_canon_sha256": "1afb3098930ecdccdfb2d71420797fc5594301a5d4cdcef20e46e3ff68fd3ed5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3754",
    "kind": "arxiv",
    "version": 4
  }
}