Pith Number

pith:GN2U7E7L

pith:2019:GN2U7E7LPF7ACTW355AYMC4OSO

not attested not anchored not stored refs pending

The semigroup of monotone co-finite partial homeomorphisms of the real line

Kateryna Melnyk, Oleg Gutik

arxiv:1904.06647 v1 · 2019-04-14 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GN2U7E7LPF7ACTW355AYMC4OSO}

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	2026-05-17T23:48:36.643243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33754f93eb797e014edbef41860b8e93a3cde4e9c283b6db99d4b23377f2cca8

Aliases

arxiv: 1904.06647 · arxiv_version: 1904.06647v1 · doi: 10.48550/arxiv.1904.06647 · pith_short_12: GN2U7E7LPF7A · pith_short_16: GN2U7E7LPF7ACTW3 · pith_short_8: GN2U7E7L

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/GN2U7E7LPF7ACTW355AYMC4OSO \
  | 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: 33754f93eb797e014edbef41860b8e93a3cde4e9c283b6db99d4b23377f2cca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99c0f1d6745834f942961ed65d6ec6957dd4404776127ab0ca00c00e065d07ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-04-14T07:59:00Z",
    "title_canon_sha256": "050b9f9f6f493bb125e33aaada6626caa6500370c33571beff3d97d887faef07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06647",
    "kind": "arxiv",
    "version": 1
  }
}