Pith Number

pith:SX2VJ45W

pith:2018:SX2VJ45WNA37JK4QFFFGO5QZ5O

not attested not anchored not stored refs pending

Representations of the inverse hull of a 0-left cancellative semigroup

B. Steinberg, R. Exel

arxiv:1802.06281 v1 · 2018-02-17 · math.OA · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SX2VJ45WNA37JK4QFFFGO5QZ5O}

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	2026-05-18T00:23:03.808889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95f554f3b66837f4ab90294a677619ebacf113ee3be1593e3473b94796a77008

Aliases

arxiv: 1802.06281 · arxiv_version: 1802.06281v1 · doi: 10.48550/arxiv.1802.06281 · pith_short_12: SX2VJ45WNA37 · pith_short_16: SX2VJ45WNA37JK4Q · pith_short_8: SX2VJ45W

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/SX2VJ45WNA37JK4QFFFGO5QZ5O \
  | 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: 95f554f3b66837f4ab90294a677619ebacf113ee3be1593e3473b94796a77008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b39a97cbf53127058b72caef593e51f4e191ef89cd2974137e311ffac3333b",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-02-17T20:00:16Z",
    "title_canon_sha256": "0d36eeff59f4b2568de29d4d92a5226622c3127f0a7e4041f163565ca579f854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06281",
    "kind": "arxiv",
    "version": 1
  }
}