Pith Number

pith:5Q6JK7KE

pith:2012:5Q6JK7KE4Z565ZLVW4L63BYPB4

not attested not anchored not stored refs pending

Optimal Sampling Points in Reproducing Kernel Hilbert Spaces

Haizhang Zhang, Rui Wang

arxiv:1207.5871 v1 · 2012-07-25 · cs.IT · math.IT · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5Q6JK7KE4Z565ZLVW4L63BYPB4}

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	2026-05-18T03:50:10.084637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec3c957d44e67beee575b717ed870f0f04469b8be4bc065f3b932811e5a7d884

Aliases

arxiv: 1207.5871 · arxiv_version: 1207.5871v1 · doi: 10.48550/arxiv.1207.5871 · pith_short_12: 5Q6JK7KE4Z56 · pith_short_16: 5Q6JK7KE4Z565ZLV · pith_short_8: 5Q6JK7KE

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/5Q6JK7KE4Z565ZLVW4L63BYPB4 \
  | 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: ec3c957d44e67beee575b717ed870f0f04469b8be4bc065f3b932811e5a7d884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3ebf3386534b444ece14fbfb442a8c4f371093c7f753ff38eec82177ddf26a6",
    "cross_cats_sorted": [
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-25T02:43:12Z",
    "title_canon_sha256": "c3acea60a0fb58038da59e58e4baf69b945af6ad109592cd5ab5b5843f1ff794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5871",
    "kind": "arxiv",
    "version": 1
  }
}