Pith Number

pith:EQBSTEXR

pith:2015:EQBSTEXR6F6NO6CSW2NKGVCHBF

not attested not anchored not stored refs pending

Construction of Near-Capacity Protograph LDPC Code Sequences with Block-Error Thresholds

Andrew Thangaraj, Arunkumar Subramanian, Asit Kumar Pradhan

arxiv:1510.06828 v1 · 2015-10-23 · 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{EQBSTEXR6F6NO6CSW2NKGVCHBF}

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	2026-05-18T00:57:50.300118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24032992f1f17cd77852b69aa35447095490fc81356fc17da702ff01bbbe058b

Aliases

arxiv: 1510.06828 · arxiv_version: 1510.06828v1 · doi: 10.48550/arxiv.1510.06828 · pith_short_12: EQBSTEXR6F6N · pith_short_16: EQBSTEXR6F6NO6CS · pith_short_8: EQBSTEXR

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/EQBSTEXR6F6NO6CSW2NKGVCHBF \
  | 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: 24032992f1f17cd77852b69aa35447095490fc81356fc17da702ff01bbbe058b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43078a95b9d85c2bc5fab3cc4d9f14c3518225acdb7944c289644b2756d5845b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-10-23T05:05:11Z",
    "title_canon_sha256": "de23567878d644e3f1c1328dc74a8ae285382d700eafcc756e6b012d1f4fe717"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06828",
    "kind": "arxiv",
    "version": 1
  }
}