Pith Number

pith:K22WANTV

pith:2015:K22WANTVTW27JAIHSMRG7EQRXH

not attested not anchored not stored refs pending

Decoding LDPC codes via Noisy Gradient Descent Bit-Flipping with Re-Decoding

Chris Winstead, Gopalakrishnan Sundararajan, Tasnuva Tithi

arxiv:1503.08913 v1 · 2015-03-31 · 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{K22WANTVTW27JAIHSMRG7EQRXH}

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	2026-05-18T02:19:51.871882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56b56036759db5f4810793226f9211b9eed780e3f04160afdab30cf874f08e76

Aliases

arxiv: 1503.08913 · arxiv_version: 1503.08913v1 · doi: 10.48550/arxiv.1503.08913 · pith_short_12: K22WANTVTW27 · pith_short_16: K22WANTVTW27JAIH · pith_short_8: K22WANTV

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/K22WANTVTW27JAIHSMRG7EQRXH \
  | 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: 56b56036759db5f4810793226f9211b9eed780e3f04160afdab30cf874f08e76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ccb96a68d9d8652eeb317bbfce1f0fd53520788baa9bd7a6b2d7d573f498c0d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-03-31T04:44:32Z",
    "title_canon_sha256": "25a9048bdd1110f1c5e61a864b3f0e68796f5799c6597a8798cf5a0c8f195adf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08913",
    "kind": "arxiv",
    "version": 1
  }
}