Pith Number

pith:C2KF2QTR

pith:2010:C2KF2QTRGZCD76JSRXHTGHFPEC

not attested not anchored not stored refs pending

Construction of wiretap codes from ordinary channel codes

Masahito Hayashi, Ryutaroh Matsumoto

arxiv:1001.1197 v1 · 2010-01-08 · cs.IT · cs.CR · 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{C2KF2QTRGZCD76JSRXHTGHFPEC}

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	2026-05-18T04:39:51.310334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16945d427136443ff9328dcf331caf20844e151bc143935326a4b900f9fdce62

Aliases

arxiv: 1001.1197 · arxiv_version: 1001.1197v1 · doi: 10.48550/arxiv.1001.1197 · pith_short_12: C2KF2QTRGZCD · pith_short_16: C2KF2QTRGZCD76JS · pith_short_8: C2KF2QTR

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/C2KF2QTRGZCD76JSRXHTGHFPEC \
  | 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: 16945d427136443ff9328dcf331caf20844e151bc143935326a4b900f9fdce62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ddb0638c2c60172679994bfa896c45b0d6a58c1630225ea3a4b76e792f11b40",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-01-08T05:21:41Z",
    "title_canon_sha256": "08612ffbf124ed3d20b88c33065c41b6248daef2d39ed2a5159daa230bef860f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.1197",
    "kind": "arxiv",
    "version": 1
  }
}