Pith Number

pith:CUET6WA7

pith:2013:CUET6WA7G5FVHXOE4GIOYC43PP

not attested not anchored not stored refs pending

An efficient length- and rate-preserving concatenation of polar and repetition codes

Johannes B. Huber, Mathis Seidl

arxiv:1312.2785 v1 · 2013-12-10 · 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{CUET6WA7G5FVHXOE4GIOYC43PP}

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	2026-05-18T03:05:08.841005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15093f581f374b53ddc4e190ec0b9b7bd815ae7b4a0eeeb60d70dff29239bc50

Aliases

arxiv: 1312.2785 · arxiv_version: 1312.2785v1 · doi: 10.48550/arxiv.1312.2785 · pith_short_12: CUET6WA7G5FV · pith_short_16: CUET6WA7G5FVHXOE · pith_short_8: CUET6WA7

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/CUET6WA7G5FVHXOE4GIOYC43PP \
  | 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: 15093f581f374b53ddc4e190ec0b9b7bd815ae7b4a0eeeb60d70dff29239bc50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2189a6e64ef48bc65cfc196e1c7836e3b5af55c486016ad275066b9ad074737c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-12-10T12:41:56Z",
    "title_canon_sha256": "3be8195135016c56516f7cb8e103271b7b78fd6290b45c2dc245ddd1dcc0be13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2785",
    "kind": "arxiv",
    "version": 1
  }
}