Pith Number

pith:JRPXC3ZS

pith:2015:JRPXC3ZSVJXSR4VJJEDFS7FLBD

not attested not anchored not stored refs pending

Rate-Compatible Polar Codes for Wireless Channels

Hessam Mahdavifar, Hsien-Ping Lin, Inyup Kang, Jungwon Lee, Mostafa El-Khamy

arxiv:1508.07698 v1 · 2015-08-31 · 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{JRPXC3ZSVJXSR4VJJEDFS7FLBD}

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	2026-05-18T01:34:31.626943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c5f716f32aa6f28f2a94906597cab08d0452b7bf7b2365f7ec20c366f99a834

Aliases

arxiv: 1508.07698 · arxiv_version: 1508.07698v1 · doi: 10.48550/arxiv.1508.07698 · pith_short_12: JRPXC3ZSVJXS · pith_short_16: JRPXC3ZSVJXSR4VJ · pith_short_8: JRPXC3ZS

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/JRPXC3ZSVJXSR4VJJEDFS7FLBD \
  | 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: 4c5f716f32aa6f28f2a94906597cab08d0452b7bf7b2365f7ec20c366f99a834

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88945000096d33a680bb4324d0e06b6a020e507eb2c582d2052d4f32d265f18f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-08-31T06:26:00Z",
    "title_canon_sha256": "368d8e920ed42333a189f69eb57fe410223bcc27db86e0a0d3971ecd6410f29e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07698",
    "kind": "arxiv",
    "version": 1
  }
}