Pith Number

pith:7LA4XISJ

pith:2009:7LA4XISJROXPW2LFFLKACMR4IT

not attested not anchored not stored refs pending

Strongly Secure Privacy Amplification Cannot Be Obtained by Encoder of Slepian-Wolf Code

Ryutaroh Matsumoto, Shun Watanabe, Tomohiko Uyematsu

arxiv:0906.2582 v3 · 2009-06-15 · cs.IT · 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{7LA4XISJROXPW2LFFLKACMR4IT}

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	2026-05-18T04:27:16.445773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fac1cba2498baefb69652ad401323c44fde3596291443237c5a106958fdca069

Aliases

arxiv: 0906.2582 · arxiv_version: 0906.2582v3 · doi: 10.48550/arxiv.0906.2582 · pith_short_12: 7LA4XISJROXP · pith_short_16: 7LA4XISJROXPW2LF · pith_short_8: 7LA4XISJ

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/7LA4XISJROXPW2LFFLKACMR4IT \
  | 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: fac1cba2498baefb69652ad401323c44fde3596291443237c5a106958fdca069

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "480a80368b007e929b5c75b312f85a168167eda3545abdd34437e9798b57982d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-06-15T00:26:59Z",
    "title_canon_sha256": "d4e1e5b285b8cab22635797d07612fa3718252ca4586c1806b5266e19b818f11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2582",
    "kind": "arxiv",
    "version": 3
  }
}