Pith Number

pith:THV6HKVZ

pith:2012:THV6HKVZ7BPJRUS26EGQDVZLRX

not attested not anchored not stored refs pending

Expurgation Exponent of Leaked Information in Privacy Amplification for Binary Sources

Shun Watanabe

arxiv:1208.3017 v1 · 2012-08-15 · 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{THV6HKVZ7BPJRUS26EGQDVZLRX}

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	2026-05-18T00:58:18.150127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99ebe3aab9f85e98d25af10d01d72b8dde665e8f284b3f8b2a22f99df5290760

Aliases

arxiv: 1208.3017 · arxiv_version: 1208.3017v1 · doi: 10.48550/arxiv.1208.3017 · pith_short_12: THV6HKVZ7BPJ · pith_short_16: THV6HKVZ7BPJRUS2 · pith_short_8: THV6HKVZ

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/THV6HKVZ7BPJRUS26EGQDVZLRX \
  | 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: 99ebe3aab9f85e98d25af10d01d72b8dde665e8f284b3f8b2a22f99df5290760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5548eb64f7ba4840a394661fc6e14c4ddb831020e6611baefa699b8e6908dd0b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-08-15T02:48:49Z",
    "title_canon_sha256": "8c750d4a62baebf6153dbc2b236d52f52ba848403ce1b92425c3cc6fc157bcec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3017",
    "kind": "arxiv",
    "version": 1
  }
}