Pith Number

pith:WKORVCNK

pith:2018:WKORVCNKUVT4UPSCKROHTJWJC7

not attested not anchored not stored refs pending

Log-logarithmic Time Pruned Polar Coding on Binary Erasure Channels

Hsin-Po Wang, Iwan Duursma

arxiv:1812.08106 v1 · 2018-12-19 · 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{WKORVCNKUVT4UPSCKROHTJWJC7}

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	2026-05-17T23:57:54.852366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b29d1a89aaa567ca3e42545c79a6c917fc8d628ecadc2e7a92ed652007f437a8

Aliases

arxiv: 1812.08106 · arxiv_version: 1812.08106v1 · doi: 10.48550/arxiv.1812.08106 · pith_short_12: WKORVCNKUVT4 · pith_short_16: WKORVCNKUVT4UPSC · pith_short_8: WKORVCNK

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/WKORVCNKUVT4UPSCKROHTJWJC7 \
  | 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: b29d1a89aaa567ca3e42545c79a6c917fc8d628ecadc2e7a92ed652007f437a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62e4d1f94a4902b60433eef05818eedb5bc0f9e8470fda4fe9152d821d54e936",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-19T17:36:18Z",
    "title_canon_sha256": "5aa29f831ab361fbf4c06165a044229dda35c356d74f7e9054a58417bb43dada"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08106",
    "kind": "arxiv",
    "version": 1
  }
}