Pith Number

pith:R3DQXFX4

pith:2010:R3DQXFX4NC6RC7OYH5ENQKCHUN

not attested not anchored not stored refs pending

Tree-structure Expectation Propagation for Decoding LDPC codes over Binary Erasure Channels

Juan Jos\'e Murillo-Fuentes, Pablo M. Olmos

arxiv:1006.1535 v1 · 2010-06-08 · 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{R3DQXFX4NC6RC7OYH5ENQKCHUN}

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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	2026-05-18T04:40:33.994068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ec70b96fc68bd117dd83f48d82847a372250ca951c2dea53edd6566a3bf91f8

Aliases

arxiv: 1006.1535 · arxiv_version: 1006.1535v1 · doi: 10.48550/arxiv.1006.1535 · pith_short_12: R3DQXFX4NC6R · pith_short_16: R3DQXFX4NC6RC7OY · pith_short_8: R3DQXFX4

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/R3DQXFX4NC6RC7OYH5ENQKCHUN \
  | 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: 8ec70b96fc68bd117dd83f48d82847a372250ca951c2dea53edd6566a3bf91f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05fba31a8bb58ec1f9d6541688e5a1c267e60dcb4ae04b24542fb082e03ae039",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-06-08T11:38:02Z",
    "title_canon_sha256": "b5ef196b1eec0931c199319553fc6abbc59a16e5a1c79ffa71e3a0606a9a704e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1535",
    "kind": "arxiv",
    "version": 1
  }
}