Pith Number

pith:3UNLF7UK

pith:2018:3UNLF7UKZ3T7E5IJ5MRVHKJ55U

not attested not anchored not stored refs pending

Characterization and Efficient Search of Non-Elementary Trapping Sets of LDPC Codes with Applications to Stopping Sets

Amir H. Banihashemi, Yoones Hashemi

arxiv:1801.02028 v1 · 2018-01-06 · 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{3UNLF7UKZ3T7E5IJ5MRVHKJ55U}

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	2026-05-18T00:26:35.133003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd1ab2fe8acee7f27509eb2353a93ded094bf2931930a90dbb208d19c2a30c76

Aliases

arxiv: 1801.02028 · arxiv_version: 1801.02028v1 · doi: 10.48550/arxiv.1801.02028 · pith_short_12: 3UNLF7UKZ3T7 · pith_short_16: 3UNLF7UKZ3T7E5IJ · pith_short_8: 3UNLF7UK

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/3UNLF7UKZ3T7E5IJ5MRVHKJ55U \
  | 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: dd1ab2fe8acee7f27509eb2353a93ded094bf2931930a90dbb208d19c2a30c76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3652a1652b721b54c155a12bfbba1ac079e09330190da7be8bfb1782e87a2ac1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-06T15:03:11Z",
    "title_canon_sha256": "7e1208c7f84f5ea8c6076fc2609cb9dc4a28c2e89d6ca8dc9faf8e96f4c0f807"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02028",
    "kind": "arxiv",
    "version": 1
  }
}