Pith Number

pith:6WZIDCSA

pith:2026:6WZIDCSAR757IKPFYZIJFOMFID

not attested not anchored not stored refs pending

On Out-of-sample Embedding in UMAP

Jason W. Fleischer, Mohammad Tariqul Islam

arxiv:2606.04451 v1 · 2026-06-03 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6WZIDCSAR757IKPFYZIJFOMFID}

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	2026-06-04T01:09:08.630510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5b2818a408ffbf429e5c65092b98540cfb5224f820a31838a7c757cc7ecb466

Aliases

arxiv: 2606.04451 · arxiv_version: 2606.04451v1 · doi: 10.48550/arxiv.2606.04451 · pith_short_12: 6WZIDCSAR757 · pith_short_16: 6WZIDCSAR757IKPF · pith_short_8: 6WZIDCSA

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/6WZIDCSAR757IKPFYZIJFOMFID \
  | 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: f5b2818a408ffbf429e5c65092b98540cfb5224f820a31838a7c757cc7ecb466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73a6a3b8e3ba2ad5049ed95e1839122fed7c908ab92cb5b5b3b1862177208166",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-03T04:54:45Z",
    "title_canon_sha256": "32ecfe3255932bb88f0b0395920754ef29846d9c44813704282f6af5ea319868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04451",
    "kind": "arxiv",
    "version": 1
  }
}