Pith Number

pith:W3BR7U4M

pith:2020:W3BR7U4MU7RJMOMR63ZC4RWKPW

not attested not anchored not stored refs pending

Composable Sketches for Functions of Frequencies: Beyond the Worst Case

Edith Cohen, Ofir Geri, Rasmus Pagh

arxiv:2004.04772 v3 · 2020-04-09 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W3BR7U4MU7RJMOMR63ZC4RWKPW}

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.

Cited by

1 paper in Pith

(Learned) Frequency Estimation Algorithms under Zipfian Distribution

Receipt and verification

First computed	2026-07-05T03:28:34.573953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6c31fd38ca7e2963991f6f22e46ca7d885ff0a79808fdcc013e5b8be4035f61

Aliases

arxiv: 2004.04772 · arxiv_version: 2004.04772v3 · doi: 10.48550/arxiv.2004.04772 · pith_short_12: W3BR7U4MU7RJ · pith_short_16: W3BR7U4MU7RJMOMR · pith_short_8: W3BR7U4M

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/W3BR7U4MU7RJMOMR63ZC4RWKPW \
  | 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: b6c31fd38ca7e2963991f6f22e46ca7d885ff0a79808fdcc013e5b8be4035f61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe199d6216798293d35e7ed0b1735da8e024dfcf8d067b5454dba9e8c6a1c04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-04-09T19:00:37Z",
    "title_canon_sha256": "b62a690b800cc14274082cee9389955d55eb5eaf0ac2879f64bbc8c6f01ae336"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.04772",
    "kind": "arxiv",
    "version": 3
  }
}