Pith Number

pith:UM7R2IBP

pith:2013:UM7R2IBPTK6O4Z53IWHSBL6RQT

not attested not anchored not stored refs pending

Resource Efficient LDPC Decoders for Multimedia Communication

Syed Mahfuzul Aziz, Vikram Arkalgud Chandrasetty

arxiv:1305.6216 v2 · 2013-05-27 · cs.IT · cs.MM · 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{UM7R2IBPTK6O4Z53IWHSBL6RQT}

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	2026-05-18T03:17:00.035481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a33f1d202f9abcee67bb458f20afd184cb2c545f44ea7d5482ea2ccf0d540ea5

Aliases

arxiv: 1305.6216 · arxiv_version: 1305.6216v2 · doi: 10.48550/arxiv.1305.6216 · pith_short_12: UM7R2IBPTK6O · pith_short_16: UM7R2IBPTK6O4Z53 · pith_short_8: UM7R2IBP

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/UM7R2IBPTK6O4Z53IWHSBL6RQT \
  | 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: a33f1d202f9abcee67bb458f20afd184cb2c545f44ea7d5482ea2ccf0d540ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4944818145164f059b04f80369dadc8f11ecc771564625de40c34e4ae2fbad52",
    "cross_cats_sorted": [
      "cs.MM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-05-27T13:38:22Z",
    "title_canon_sha256": "0af77ef8cd214c3775dce180c5b1344280fe80f9d196f0773eac265ac3defee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6216",
    "kind": "arxiv",
    "version": 2
  }
}