Pith Number

pith:A6FT3DS2

pith:2019:A6FT3DS2N7RWYXE7YNIZDXDXYD

not attested not anchored not stored refs pending

Approaching the Finite Blocklength Capacity within 0.025dB by Short Polar Codes and CRC-Aided Hybrid Decoding

Chao Dong, Jincheng Dai, Jinnan Piao, Kai Niu

arxiv:1910.03254 v1 · 2019-10-08 · 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{A6FT3DS2N7RWYXE7YNIZDXDXYD}

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	2026-07-05T00:10:19.695606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

078b3d8e5a6fe36c5c9fc35191dc77c0fa4e4cde072f39c9b56635eddba500cb

Aliases

arxiv: 1910.03254 · arxiv_version: 1910.03254v1 · doi: 10.48550/arxiv.1910.03254 · pith_short_12: A6FT3DS2N7RW · pith_short_16: A6FT3DS2N7RWYXE7 · pith_short_8: A6FT3DS2

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/A6FT3DS2N7RWYXE7YNIZDXDXYD \
  | 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: 078b3d8e5a6fe36c5c9fc35191dc77c0fa4e4cde072f39c9b56635eddba500cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7a56d5878c3efccd566f80cff7e30c9343daced121e10cd10f0ea90f4febe27",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-10-08T07:34:25Z",
    "title_canon_sha256": "ffefac1b5203f7b4778001fc6f356a596becaad9bf747e6012e078715a22d4da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03254",
    "kind": "arxiv",
    "version": 1
  }
}