Pith Number

pith:QVPUZWHC

pith:2010:QVPUZWHCQZXRVWZQL6LN7OYLU4

not attested not anchored not stored refs pending

Coupling optional P\'olya trees and the two sample problem

Li Ma, Wing H. Wong

arxiv:1011.1253 v4 · 2010-11-04 · stat.ME · math.ST · stat.TH

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

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	2026-05-18T04:26:21.580986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

855f4cd8e2866f1adb305f96dfbb0ba72f2ae22177c819d64aa820656ee555d8

Aliases

arxiv: 1011.1253 · arxiv_version: 1011.1253v4 · doi: 10.48550/arxiv.1011.1253 · pith_short_12: QVPUZWHCQZXR · pith_short_16: QVPUZWHCQZXRVWZQ · pith_short_8: QVPUZWHC

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/QVPUZWHCQZXRVWZQL6LN7OYLU4 \
  | 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: 855f4cd8e2866f1adb305f96dfbb0ba72f2ae22177c819d64aa820656ee555d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "267b02b32b1ecbc8593cec5949062da46ba0f647ac1f3e4735544417b1841601",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2010-11-04T19:54:34Z",
    "title_canon_sha256": "279b13b231c0ce1cd61d9bc314fc869cc6b3e1e66873d5a804670782c68b3a5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1253",
    "kind": "arxiv",
    "version": 4
  }
}