Pith Number

pith:57YSEMMC

pith:2014:57YSEMMCJDSNREZANFP7CXP4GJ

not attested not anchored not stored refs pending

Improving the Finite-Length Performance of Spatially Coupled LDPC Codes by Connecting Multiple Code Chains

Daniel J. Costello Jr, David G. M. Mitchell, Dmitri Truhachev, Pablo M. Olmos

arxiv:1402.7170 v1 · 2014-02-28 · 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{57YSEMMCJDSNREZANFP7CXP4GJ}

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	2026-05-18T02:57:34.765845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eff122318248e4d89320695ff15dfc3264c3028cec721cd0fffb663c030e9c39

Aliases

arxiv: 1402.7170 · arxiv_version: 1402.7170v1 · doi: 10.48550/arxiv.1402.7170 · pith_short_12: 57YSEMMCJDSN · pith_short_16: 57YSEMMCJDSNREZA · pith_short_8: 57YSEMMC

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/57YSEMMCJDSNREZANFP7CXP4GJ \
  | 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: eff122318248e4d89320695ff15dfc3264c3028cec721cd0fffb663c030e9c39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db5df1f823dc2c7a933d60e17a4f1f736db76b22aba16dba0634dde3f78b77a4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-02-28T09:10:34Z",
    "title_canon_sha256": "bb579efc68f1f797411d1126a28b1202cdb6f496f695514d737f9cd8783b4905"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.7170",
    "kind": "arxiv",
    "version": 1
  }
}