Pith Number

pith:DDQJZGDM

pith:2013:DDQJZGDMOOMCQKSBWTT2MDNC2N

not attested not anchored not stored refs pending

Optimal Algorithms for Testing Closeness of Discrete Distributions

Gregory Valiant, Ilias Diakonikolas, Paul Valiant, Siu-on Chan

arxiv:1308.3946 v1 · 2013-08-19 · cs.DS · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDQJZGDMOOMCQKSBWTT2MDNC2N}

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	2026-05-18T03:15:35.219776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e09c986c7398282a41b4e7a60da2d34f44e151edf471e2413d5f035f0ee521

Aliases

arxiv: 1308.3946 · arxiv_version: 1308.3946v1 · doi: 10.48550/arxiv.1308.3946 · pith_short_12: DDQJZGDMOOMC · pith_short_16: DDQJZGDMOOMCQKSB · pith_short_8: DDQJZGDM

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/DDQJZGDMOOMCQKSBWTT2MDNC2N \
  | 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: 18e09c986c7398282a41b4e7a60da2d34f44e151edf471e2413d5f035f0ee521

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4066eeb28cb9a5655d0dcdb1dd88c6798de5fb3a07e7f39a8671d761d4d8e76a",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-08-19T07:45:07Z",
    "title_canon_sha256": "2f4d0777bc71b5901cb045b4c74def8f8a57745ca30ff0bd2349a943aada5567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3946",
    "kind": "arxiv",
    "version": 1
  }
}