Pith Number

pith:4RKDHVVC

pith:2018:4RKDHVVCHBV2FOEJ7UGQHPHNYL

not attested not anchored not stored refs pending

The Conrad Program: From l-groups to algebras of logic

Constantine Tsinakis, Jan K\"uhr, Lianzhen Liu, Michal Botur

arxiv:1810.01120 v1 · 2018-10-02 · 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{4RKDHVVCHBV2FOEJ7UGQHPHNYL}

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	2026-05-18T00:04:18.770053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e45433d6a2386ba2b889fd0d03bcedc2def0d28e189499f41b651f0e5380cd7a

Aliases

arxiv: 1810.01120 · arxiv_version: 1810.01120v1 · doi: 10.48550/arxiv.1810.01120 · pith_short_12: 4RKDHVVCHBV2 · pith_short_16: 4RKDHVVCHBV2FOEJ · pith_short_8: 4RKDHVVC

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/4RKDHVVCHBV2FOEJ7UGQHPHNYL \
  | 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: e45433d6a2386ba2b889fd0d03bcedc2def0d28e189499f41b651f0e5380cd7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a90ba6bc450e9b2bd2b2c1b6fe6f9c955c1144b8adb8627e372dc861e0b269b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-10-02T08:57:15Z",
    "title_canon_sha256": "893ffb30b59162c9138fc997c736954c89ae6872702e18425df3e9b15535bfc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01120",
    "kind": "arxiv",
    "version": 1
  }
}