Pith Number

pith:DM46EKNM

pith:2011:DM46EKNMVMS4G4S2LGQCIXOEUL

not attested not anchored not stored refs pending

Scheduled-PEG construction of LDPC codes for Upper-Layer FEC

David Declercq, Lam Pham Sy, Nghia Pham, Valentin Savin

arxiv:1103.2690 v1 · 2011-03-14 · 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{DM46EKNMVMS4G4S2LGQCIXOEUL}

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	2026-05-18T04:26:54.358233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b39e229acab25c3725a59a0245dc4a2ce97eea1c1ec00295b85df75aad92e20

Aliases

arxiv: 1103.2690 · arxiv_version: 1103.2690v1 · doi: 10.48550/arxiv.1103.2690 · pith_short_12: DM46EKNMVMS4 · pith_short_16: DM46EKNMVMS4G4S2 · pith_short_8: DM46EKNM

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/DM46EKNMVMS4G4S2LGQCIXOEUL \
  | 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: 1b39e229acab25c3725a59a0245dc4a2ce97eea1c1ec00295b85df75aad92e20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9001cdf381c7a994a25d5b05bf9c395b8eda9c9fc7f14df472a0cb66bbfc616",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-03-14T15:29:02Z",
    "title_canon_sha256": "98e4e0ce5ab7b483dd153e107b4801246fb1555b3c55de711f1043c41cf6084e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2690",
    "kind": "arxiv",
    "version": 1
  }
}