Pith Number

pith:XJFR6YPX

pith:2018:XJFR6YPXZDCU2D2CPYRT6QRAIU

not attested not anchored not stored refs pending

Compact QC-LDPC Block and SC-LDPC Convolutional Codes for Low-Latency Communications

Alireza Tasdighi, Franco Chiaraluce, Marco Baldi, Massimo Battaglioni, Mohammad H. Tadayon

arxiv:1809.04662 v1 · 2018-09-12 · 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{XJFR6YPXZDCU2D2CPYRT6QRAIU}

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	2026-05-18T00:05:50.073066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba4b1f61f7c8c54d0f427e233f4220450c5e063ed1e3599e2855619ab2e3a865

Aliases

arxiv: 1809.04662 · arxiv_version: 1809.04662v1 · doi: 10.48550/arxiv.1809.04662 · pith_short_12: XJFR6YPXZDCU · pith_short_16: XJFR6YPXZDCU2D2C · pith_short_8: XJFR6YPX

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/XJFR6YPXZDCU2D2CPYRT6QRAIU \
  | 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: ba4b1f61f7c8c54d0f427e233f4220450c5e063ed1e3599e2855619ab2e3a865

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b5b689d41866f6638873b25a40374ac25e70e430c31e419f7069a4f7ce4b33d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-12T20:26:31Z",
    "title_canon_sha256": "0034e6dda009f6ca9b8650b1cb6bc568aa85ce5e893806c711c622102cb97f16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04662",
    "kind": "arxiv",
    "version": 1
  }
}