Pith Number

pith:TGZKROKT

pith:2010:TGZKROKT4A5THV2IH5BPAPQMLZ

not attested not anchored not stored refs pending

Rate-Equivocation Optimal Spatially Coupled LDPC Codes for the BEC Wiretap Channel

Mattias Andersson, Mikael Skoglund, Ruediger Urbanke, Vishwambhar Rathi

arxiv:1010.1669 v2 · 2010-10-08 · 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{TGZKROKT4A5THV2IH5BPAPQMLZ}

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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	2026-05-18T04:17:25.008480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99b2a8b953e03b33d7483f42f03e0c5e6bde7f97d013d7a5718081ab41ae2c67

Aliases

arxiv: 1010.1669 · arxiv_version: 1010.1669v2 · doi: 10.48550/arxiv.1010.1669 · pith_short_12: TGZKROKT4A5T · pith_short_16: TGZKROKT4A5THV2I · pith_short_8: TGZKROKT

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/TGZKROKT4A5THV2IH5BPAPQMLZ \
  | 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: 99b2a8b953e03b33d7483f42f03e0c5e6bde7f97d013d7a5718081ab41ae2c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "724c115e9c8890bcab2f0241e991716052dcb2735ff73ad20b56a2f20c6ed331",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-10-08T11:50:43Z",
    "title_canon_sha256": "e505cdb32b0be169185cc00caa6ac791ac773c96c455e4db83c2312eb361c95b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1669",
    "kind": "arxiv",
    "version": 2
  }
}