Pith Number

pith:UAF4APEW

pith:2026:UAF4APEWUZNCNFC2DY3ALKPSVB

not attested not anchored not stored refs pending

Feature-Weighted Maximum Representative Subsampling

Stefan Kramer, Tony Hauptmann

arxiv:2603.01013 v1 · 2026-03-01 · 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{UAF4APEWUZNCNFC2DY3ALKPSVB}

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	2026-06-04T01:08:46.593066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a00bc03c96a65a26945a1e3605a9f2a853d7b4fca6ceab7738ab7b3e190202a0

Aliases

arxiv: 2603.01013 · arxiv_version: 2603.01013v1 · doi: 10.48550/arxiv.2603.01013 · pith_short_12: UAF4APEWUZNC · pith_short_16: UAF4APEWUZNCNFC2 · pith_short_8: UAF4APEW

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/UAF4APEWUZNCNFC2DY3ALKPSVB \
  | 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: a00bc03c96a65a26945a1e3605a9f2a853d7b4fca6ceab7738ab7b3e190202a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f388d329b65ed3d42cf082381efcd49bec20e544f591593f76da221f3bf8fcd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-01T09:47:14Z",
    "title_canon_sha256": "ed85729ab21e8e2945b4a2b7e34144bd3843dbd753f35b65af053621fe907a25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.01013",
    "kind": "arxiv",
    "version": 1
  }
}