Pith Number

pith:O6WWTS4H

pith:2021:O6WWTS4HT6EKWB7O24TUNNQEQW

not attested not anchored not stored refs pending

Assigning Topics to Documents by Successive Projections

Alexandre Tsybakov (CREST), Maxim Panov (Skoltech), Olga Klopp (CREST), Suzanne Sigalla (CREST)

arxiv:2107.03684 v1 · 2021-07-08 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O6WWTS4HT6EKWB7O24TUNNQEQW}

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	2026-07-05T02:56:18.441276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77ad69cb879f88ab07eed72746b60485a93c6b10e6163f9fbe98c207cea518e5

Aliases

arxiv: 2107.03684 · arxiv_version: 2107.03684v1 · doi: 10.48550/arxiv.2107.03684 · pith_short_12: O6WWTS4HT6EK · pith_short_16: O6WWTS4HT6EKWB7O · pith_short_8: O6WWTS4H

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/O6WWTS4HT6EKWB7O24TUNNQEQW \
  | 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: 77ad69cb879f88ab07eed72746b60485a93c6b10e6163f9fbe98c207cea518e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54c1f3d3bfdbfc70e0d9b0ce2ef03f3cb0c29f8121fc52b32dbdb7950fb23b92",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2021-07-08T08:58:35Z",
    "title_canon_sha256": "8f4846e7b58a2e945cc13e5833534c4abbd69e2e30df1453833f19f7e5db8f39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.03684",
    "kind": "arxiv",
    "version": 1
  }
}