Pith Number

pith:UEK7AHCN

pith:2010:UEK7AHCNW5RYQF5O6VTNF4FUCR

not attested not anchored not stored refs pending

Quasi-Cyclic Asymptotically Regular LDPC Codes

Daniel J. Costello Jr, David G. M. Mitchell, Michael Lentmaier, Roxana Smarandache

arxiv:1007.0404 v1 · 2010-07-02 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEK7AHCNW5RYQF5O6VTNF4FUCR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:59:10.832183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a115f01c4db7638817aef566d2f0b4144a4273c9d5e6e0dd0f294268b2d487f3

Aliases

arxiv: 1007.0404 · arxiv_version: 1007.0404v1 · doi: 10.48550/arxiv.1007.0404 · pith_short_12: UEK7AHCNW5RY · pith_short_16: UEK7AHCNW5RYQF5O · pith_short_8: UEK7AHCN

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/UEK7AHCNW5RYQF5O6VTNF4FUCR \
  | 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: a115f01c4db7638817aef566d2f0b4144a4273c9d5e6e0dd0f294268b2d487f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bbe39fb2ea0786912427d16e4bbf3a838c766bfbb1b75a2ad111ab2701ac11f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-07-02T17:14:45Z",
    "title_canon_sha256": "0064364bfeeab6dcb48de4094e7e9788f490ccaf948eedd0cf1b4fd43600acc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0404",
    "kind": "arxiv",
    "version": 1
  }
}