Pith Number

pith:AOZ2ZWO5

pith:2021:AOZ2ZWO5LWXONNQZSSAFDC666W

not attested not anchored not stored refs pending

An Efficient Semi-Streaming PTAS for Tournament Feedback ArcSet with Few Passes

Anubhav Baweja, David P. Woodruff, Justin Jia

arxiv:2107.07141 v2 · 2021-07-15 · 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{AOZ2ZWO5LWXONNQZSSAFDC666W}

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	2026-07-05T03:13:50.260034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03b3acd9dd5daee6b6199480518bdef5b47b9946be9f7ae7ab7ef45d2b05da9d

Aliases

arxiv: 2107.07141 · arxiv_version: 2107.07141v2 · doi: 10.48550/arxiv.2107.07141 · pith_short_12: AOZ2ZWO5LWXO · pith_short_16: AOZ2ZWO5LWXONNQZ · pith_short_8: AOZ2ZWO5

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/AOZ2ZWO5LWXONNQZSSAFDC666W \
  | 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: 03b3acd9dd5daee6b6199480518bdef5b47b9946be9f7ae7ab7ef45d2b05da9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a24d4818f4e48b546044a1b354cd393854b5a9fef71196a2154b7aa6f2a6ae",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-07-15T05:59:17Z",
    "title_canon_sha256": "c641f5c1af9ad8983d2de9d97378be6e6ec6cc87d5c05675c23d572156a8bb8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.07141",
    "kind": "arxiv",
    "version": 2
  }
}