Pith Number

pith:M6ZNB3XO

pith:2012:M6ZNB3XOQSYGQTCF44MEJJCCT3

not attested not anchored not stored refs pending

On the Construction of Polar Codes

Emre Telatar, Ido Tal, Ramtin Pedarsani, S. Hamed Hassani

arxiv:1209.4444 v1 · 2012-09-20 · 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{M6ZNB3XOQSYGQTCF44MEJJCCT3}

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	2026-05-18T03:45:11.710596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67b2d0eeee84b0684c45e71844a4429efbb4d57784161a5f1230ed727793fe62

Aliases

arxiv: 1209.4444 · arxiv_version: 1209.4444v1 · doi: 10.48550/arxiv.1209.4444 · pith_short_12: M6ZNB3XOQSYG · pith_short_16: M6ZNB3XOQSYGQTCF · pith_short_8: M6ZNB3XO

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/M6ZNB3XOQSYGQTCF44MEJJCCT3 \
  | 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: 67b2d0eeee84b0684c45e71844a4429efbb4d57784161a5f1230ed727793fe62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f8f4347dcc6a0958c93f728027d726fb7cc81e9e9323e4583216799e8f5bcd7",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-09-20T08:03:20Z",
    "title_canon_sha256": "b07cb0400143cdca6ca6576009fc32565b41bcff54a3a2efda0ea3594c2103e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4444",
    "kind": "arxiv",
    "version": 1
  }
}