Pith Number

pith:PCCNLPBH

pith:2015:PCCNLPBHBAQW4H2ORVRWXCAFEX

not attested not anchored not stored refs pending

Partial covering arrays for data hiding and quantization

Vladimir N. Potapov

arxiv:1512.09287 v2 · 2015-12-31 · cs.IT · math.CO · 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{PCCNLPBHBAQW4H2ORVRWXCAFEX}

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	2026-05-18T00:01:53.794462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7884d5bc2708216e1f4e8d636b880525f152902a5b6022f31c30c0b42d563547

Aliases

arxiv: 1512.09287 · arxiv_version: 1512.09287v2 · doi: 10.48550/arxiv.1512.09287 · pith_short_12: PCCNLPBHBAQW · pith_short_16: PCCNLPBHBAQW4H2O · pith_short_8: PCCNLPBH

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/PCCNLPBHBAQW4H2ORVRWXCAFEX \
  | 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: 7884d5bc2708216e1f4e8d636b880525f152902a5b6022f31c30c0b42d563547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2160a66c82acefd6dc9e42fd54ed6baef75da15efc3471b0e9a991f57c1a4d45",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-31T13:32:24Z",
    "title_canon_sha256": "1c5756fee1f2a6e9b0a8905031f1d5f4c32662e29d13f62f35114ea0a78e0ee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09287",
    "kind": "arxiv",
    "version": 2
  }
}