Pith Number

pith:5DXWRZYL

pith:2014:5DXWRZYLRYATZXC7BTVOEIIDIA

not attested not anchored not stored refs pending

Ramsey for $\mathcal{R}_{1}$ ultrafilter mappings and their Dedekind cuts

Timothy Trujillo

arxiv:1401.2835 v1 · 2014-01-13 · 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{5DXWRZYLRYATZXC7BTVOEIIDIA}

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	2026-05-18T03:02:31.822144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ef68e70b8e013cdc5f0ceae221034037b8159059c1ba9a98af08ebd2f77eb7

Aliases

arxiv: 1401.2835 · arxiv_version: 1401.2835v1 · doi: 10.48550/arxiv.1401.2835 · pith_short_12: 5DXWRZYLRYAT · pith_short_16: 5DXWRZYLRYATZXC7 · pith_short_8: 5DXWRZYL

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/5DXWRZYLRYATZXC7BTVOEIIDIA \
  | 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: e8ef68e70b8e013cdc5f0ceae221034037b8159059c1ba9a98af08ebd2f77eb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9823bc00f2dbd335e65f527b8d0548228515b649ff149b48b805626425153670",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-01-13T13:43:23Z",
    "title_canon_sha256": "f1f3df34e0a45fdcf53cd0819e263f26ba28d6d8b436d616aa8f5ea84c8fe51a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2835",
    "kind": "arxiv",
    "version": 1
  }
}