Pith Number

pith:2YWU4NDI

pith:2023:2YWU4NDIZ6P3A6T7XMB6AMYRNM

not attested not anchored not stored refs pending

The semigroup of increasing functions on the rational numbers has a unique Polish topology

Clemens Schindler, Michael Pinsker

arxiv:2305.04921 v2 · 2023-05-08 · math.RA · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2YWU4NDIZ6P3A6T7XMB6AMYRNM}

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.

Cited by

1 paper in Pith

Polish topologies on endomorphism monoids of linear orders

Receipt and verification

First computed	2026-07-05T06:40:52.627158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d62d4e3468cf9fb07a7fbb03e033116b321c210f3ec3023a8841079643888a3d

Aliases

arxiv: 2305.04921 · arxiv_version: 2305.04921v2 · doi: 10.48550/arxiv.2305.04921 · pith_short_12: 2YWU4NDIZ6P3 · pith_short_16: 2YWU4NDIZ6P3A6T7 · pith_short_8: 2YWU4NDI

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/2YWU4NDIZ6P3A6T7XMB6AMYRNM \
  | 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: d62d4e3468cf9fb07a7fbb03e033116b321c210f3ec3023a8841079643888a3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cccdbdf2faf29f7825f6483766cc9e5d48400193a4b438231fb57f0f667db184",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2023-05-08T17:56:17Z",
    "title_canon_sha256": "78e8c008352f57348ed9ac4dbd6e45b5a0600fabf8d82be51dda1f6f695ae2bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.04921",
    "kind": "arxiv",
    "version": 2
  }
}