Pith Number

pith:KJZLF46K

pith:2013:KJZLF46KKAWSB6EI7B433KLN6X

not attested not anchored not stored refs pending

Spatially-Coupled Precoded Rateless Codes

Kenta Kasai, Kohichi Sakaniwa, Kosuke Sakata

arxiv:1302.1511 v1 · 2013-02-06 · 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{KJZLF46KKAWSB6EI7B433KLN6X}

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	2026-05-18T03:34:24.061093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5272b2f3ca502d20f888f879bda96df5c6a48a5936940cad7c2d041a353e40aa

Aliases

arxiv: 1302.1511 · arxiv_version: 1302.1511v1 · doi: 10.48550/arxiv.1302.1511 · pith_short_12: KJZLF46KKAWS · pith_short_16: KJZLF46KKAWSB6EI · pith_short_8: KJZLF46K

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/KJZLF46KKAWSB6EI7B433KLN6X \
  | 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: 5272b2f3ca502d20f888f879bda96df5c6a48a5936940cad7c2d041a353e40aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b847383c19d6bba4c5736c2b9650b711cac1ccb58a171efca5a497b3e424481",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-02-06T20:50:49Z",
    "title_canon_sha256": "7e180f6a54581d120aa1d5b6d0f387949f61afaac378c644d3df6fcca8922361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1511",
    "kind": "arxiv",
    "version": 1
  }
}