Pith Number

pith:TJHKOWIA

pith:2012:TJHKOWIAJNICL3AMD57TOP3JBX

not attested not anchored not stored refs pending

New Approaches to Principal Component Analysis for Trees

Alim Ladha, Burcu Ayd{\i}n, Elizabeth Bullitt, G\'abor Pataki, Haonan Wang, J.S. Marron

arxiv:1202.2370 v1 · 2012-02-10 · stat.ME · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJHKOWIAJNICL3AMD57TOP3JBX}

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	2026-05-18T04:02:26.661326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a4ea759004b5025ec0c1f7f373f690df6977e0c2403eaf103cfe14dec3b9b7e

Aliases

arxiv: 1202.2370 · arxiv_version: 1202.2370v1 · doi: 10.48550/arxiv.1202.2370 · pith_short_12: TJHKOWIAJNIC · pith_short_16: TJHKOWIAJNICL3AM · pith_short_8: TJHKOWIA

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/TJHKOWIAJNICL3AMD57TOP3JBX \
  | 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: 9a4ea759004b5025ec0c1f7f373f690df6977e0c2403eaf103cfe14dec3b9b7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2a797b21b45f35f88889572ef92a30f02c4b033ddc020f35c26616a82472fb1",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-02-10T21:04:33Z",
    "title_canon_sha256": "e130814f0d682f50e0ea611e37d2cec8abb8c4102946a205d22b2d5807d947d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2370",
    "kind": "arxiv",
    "version": 1
  }
}