Pith Number

pith:E4F55CJ3

pith:2017:E4F55CJ3LZTZYWODEXQ4CVCVNB

not attested not anchored not stored refs pending

Fast Encoding and Decoding of Flexible-Rate and Flexible-Length Polar Codes

Masoud Ardakani, Muhammad Hanif

arxiv:1704.00651 v1 · 2017-04-03 · 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{E4F55CJ3LZTZYWODEXQ4CVCVNB}

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	2026-05-18T00:47:21.729572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

270bde893b5e679c59c325e1c15455684698fd05cb7f86c592aec0981a56ada5

Aliases

arxiv: 1704.00651 · arxiv_version: 1704.00651v1 · doi: 10.48550/arxiv.1704.00651 · pith_short_12: E4F55CJ3LZTZ · pith_short_16: E4F55CJ3LZTZYWOD · pith_short_8: E4F55CJ3

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/E4F55CJ3LZTZYWODEXQ4CVCVNB \
  | 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: 270bde893b5e679c59c325e1c15455684698fd05cb7f86c592aec0981a56ada5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "225ce32df619b3481757c0976cf5167ad7f48acdf3f84f3a1c03c2a50c16fa17",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-03T15:48:26Z",
    "title_canon_sha256": "f5410eefafd9afdfd7963ea73f6bc87d8919fd4ef2b4b6a674ebc6e947ddf729"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00651",
    "kind": "arxiv",
    "version": 1
  }
}