Pith Number

pith:VVZGQ2KG

pith:2021:VVZGQ2KGUT47UPZIGPETWZPUGK

not attested not anchored not stored refs pending

Truly Perfect Samplers for Data Streams and Sliding Windows

David P. Woodruff, Rajesh Jayaram, Samson Zhou

arxiv:2108.12017 v1 · 2021-08-26 · 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{VVZGQ2KGUT47UPZIGPETWZPUGK}

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	2026-07-05T03:09:20.918396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad72686946a4f9fa3f2833c93b65f432a0d1eb4102cb89c18dd01552f841ad2f

Aliases

arxiv: 2108.12017 · arxiv_version: 2108.12017v1 · doi: 10.48550/arxiv.2108.12017 · pith_short_12: VVZGQ2KGUT47 · pith_short_16: VVZGQ2KGUT47UPZI · pith_short_8: VVZGQ2KG

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/VVZGQ2KGUT47UPZIGPETWZPUGK \
  | 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: ad72686946a4f9fa3f2833c93b65f432a0d1eb4102cb89c18dd01552f841ad2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b79da64b4a1e6825ea741c2a37290cb98b83c44ccc6eaaca9a3e33b13a07e70",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-08-26T19:58:33Z",
    "title_canon_sha256": "214b096ede9d429ea88843df084ea2f0b541d1135cd73b47d8b5984698266168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12017",
    "kind": "arxiv",
    "version": 1
  }
}