Pith Number

pith:GFYDFUDL

pith:2014:GFYDFUDLU2FNJCGO2SAODR6EFF

not attested not anchored not stored refs pending

Rate-Compatible LDPC Codes Based on Puncturing and Extension Techniques for Short Block Lengths

J. Liu, R. C. de Lamare

arxiv:1407.5136 v1 · 2014-07-19 · 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{GFYDFUDLU2FNJCGO2SAODR6EFF}

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	2026-05-18T02:47:14.867686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

317032d06ba68ad488ced480e1c7c429482e0a3d3cee0dbf39ecd32170445968

Aliases

arxiv: 1407.5136 · arxiv_version: 1407.5136v1 · doi: 10.48550/arxiv.1407.5136 · pith_short_12: GFYDFUDLU2FN · pith_short_16: GFYDFUDLU2FNJCGO · pith_short_8: GFYDFUDL

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/GFYDFUDLU2FNJCGO2SAODR6EFF \
  | 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: 317032d06ba68ad488ced480e1c7c429482e0a3d3cee0dbf39ecd32170445968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eba231e4da311be21dffa4d6f4218d26d5f5e37cc14d09c682b63090d7d440e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-07-19T00:55:12Z",
    "title_canon_sha256": "3ad05de5ae5a399070dfdc0937442fe25ffd18f70360330bd69e0e53c5b839cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5136",
    "kind": "arxiv",
    "version": 1
  }
}