Pith Number

pith:7MI7RHW7

pith:2020:7MI7RHW7PCNFJPF67LODYD4YFG

not attested not anchored not stored refs pending

Spectral neighbor joining for reconstruction of latent tree models

Ariel Jaffe, Boaz Nadler, Joseph T. Chang, Noah Amsel, Yariv Aizenbud, Yuval Kluger

arxiv:2002.12547 v3 · 2020-02-28 · stat.ML · 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{7MI7RHW7PCNFJPF67LODYD4YFG}

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	2026-07-05T01:37:23.669874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb11f89edf789a54bcbefadc3c0f9829ab6bf970475f92539c2105af3b3c7806

Aliases

arxiv: 2002.12547 · arxiv_version: 2002.12547v3 · doi: 10.48550/arxiv.2002.12547 · pith_short_12: 7MI7RHW7PCNF · pith_short_16: 7MI7RHW7PCNFJPF6 · pith_short_8: 7MI7RHW7

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/7MI7RHW7PCNFJPF67LODYD4YFG \
  | 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: fb11f89edf789a54bcbefadc3c0f9829ab6bf970475f92539c2105af3b3c7806

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e71668d5a8bd05daddbbf5044ee7a3281cb120b42ef49a5b1fae627a70874824",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2020-02-28T05:13:08Z",
    "title_canon_sha256": "c9a4e85183984035ab6e0a26b1e6978334665dfdbb00430dd818772609e0cb17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.12547",
    "kind": "arxiv",
    "version": 3
  }
}