Pith Number

pith:HKMTPIX4

pith:2011:HKMTPIX4J3YQJP2QAA3P5KX4XR

not attested not anchored not stored refs pending

Approximating minimum-power edge-multicovers

Nachshon Cohen, Zeev Nutov

arxiv:1107.4893 v1 · 2011-07-25 · 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{HKMTPIX4J3YQJP2QAA3P5KX4XR}

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	2026-05-18T04:16:54.337618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a9937a2fc4ef104bf500036feaafcbc57351f7e96be2828057c5ee945d46230

Aliases

arxiv: 1107.4893 · arxiv_version: 1107.4893v1 · doi: 10.48550/arxiv.1107.4893 · pith_short_12: HKMTPIX4J3YQ · pith_short_16: HKMTPIX4J3YQJP2Q · pith_short_8: HKMTPIX4

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/HKMTPIX4J3YQJP2QAA3P5KX4XR \
  | 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: 3a9937a2fc4ef104bf500036feaafcbc57351f7e96be2828057c5ee945d46230

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0c448534b33f6075714083225f0929ff6f2b066b29a87c2bf5a892712ede098",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-07-25T11:07:16Z",
    "title_canon_sha256": "9da7a775eb79735db5f5e7753e5f6982e28a3892916e5c1ce77138f68c2cbf6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4893",
    "kind": "arxiv",
    "version": 1
  }
}