Pith Number

pith:H2WTSVKE

pith:2011:H2WTSVKEE4IGEI56GPDGLMRDFL

not attested not anchored not stored refs pending

An Efficient Algorithm for Finding Dominant Trapping Sets of LDPC Codes

Amir H. Banihashemi, Mehdi Karimi

arxiv:1108.4478 v2 · 2011-08-23 · 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{H2WTSVKEE4IGEI56GPDGLMRDFL}

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	2026-05-18T03:58:03.167530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ead39554427106223be33c665b2232af4b8284f4654a806313904ae4cdfbc8d

Aliases

arxiv: 1108.4478 · arxiv_version: 1108.4478v2 · doi: 10.48550/arxiv.1108.4478 · pith_short_12: H2WTSVKEE4IG · pith_short_16: H2WTSVKEE4IGEI56 · pith_short_8: H2WTSVKE

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/H2WTSVKEE4IGEI56GPDGLMRDFL \
  | 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: 3ead39554427106223be33c665b2232af4b8284f4654a806313904ae4cdfbc8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1abd07f474eb20444316cae7f207fa648a9883cd7a3aa301838ed6bc22c029f9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-08-23T02:17:45Z",
    "title_canon_sha256": "ade5d07ec3ea474ea62540f9f9e3b8efcdedd1c08416d93b75b10f369441264d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4478",
    "kind": "arxiv",
    "version": 2
  }
}