Pith Number

pith:VZ2LFNYI

pith:2018:VZ2LFNYIQZIADD7RI5J7BGPVK6

not attested not anchored not stored refs pending

Improving the Decoding Threshold of Tailbiting Spatially Coupled LDPC Codes by Energy Shaping

Alexandre Graell i Amat, Gianluigi Liva, Thomas Jerkovits

arxiv:1802.05440 v2 · 2018-02-15 · 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{VZ2LFNYIQZIADD7RI5J7BGPVK6}

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	2026-05-18T00:23:11.281041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae74b2b7088650018ff14753f099f557b8257c643d6a9195937b0b75107a3554

Aliases

arxiv: 1802.05440 · arxiv_version: 1802.05440v2 · doi: 10.48550/arxiv.1802.05440 · pith_short_12: VZ2LFNYIQZIA · pith_short_16: VZ2LFNYIQZIADD7R · pith_short_8: VZ2LFNYI

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/VZ2LFNYIQZIADD7RI5J7BGPVK6 \
  | 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: ae74b2b7088650018ff14753f099f557b8257c643d6a9195937b0b75107a3554

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02c35b792962a4b3a3d19e0d5d3bfb9b9f5835a53aaa98f0c5c449f3e6b9a75",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-02-15T09:18:13Z",
    "title_canon_sha256": "2d12b1a60e91768946c1f38ae73c0a241a8eeaa4d72a4a429438e903405908fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05440",
    "kind": "arxiv",
    "version": 2
  }
}