Pith Number

pith:NELZRHNJ

pith:2012:NELZRHNJQO6HYQX3GYQ6JFOJS3

not attested not anchored not stored refs pending

Tree-Structure Expectation Propagation for LDPC Decoding over the BEC

Fernando P\'erez-Cruz, Juan Jos\'e Murillo-Fuentes, Pablo M. Olmos

arxiv:1201.0715 v3 · 2012-01-03 · 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{NELZRHNJQO6HYQX3GYQ6JFOJS3}

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	2026-05-18T02:21:26.769863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6917989da983bc7c42fb3621e495c996ec7faff79dd74b1df9a81221e8ea732c

Aliases

arxiv: 1201.0715 · arxiv_version: 1201.0715v3 · doi: 10.48550/arxiv.1201.0715 · pith_short_12: NELZRHNJQO6H · pith_short_16: NELZRHNJQO6HYQX3 · pith_short_8: NELZRHNJ

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/NELZRHNJQO6HYQX3GYQ6JFOJS3 \
  | 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: 6917989da983bc7c42fb3621e495c996ec7faff79dd74b1df9a81221e8ea732c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52c0c41c5e11fa233c53663eb73599d5673ca27f86d8d7c1c910345c29bd2339",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-01-03T18:05:16Z",
    "title_canon_sha256": "e5c9931aad48684f63d80f9da07a4d75c6c1fac33877f2e5d395a4db9c5c0bfe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0715",
    "kind": "arxiv",
    "version": 3
  }
}