Pith Number

pith:WIEEIZVR

pith:2012:WIEEIZVR6NUOFBBLTQ7HZUGM2K

not attested not anchored not stored refs pending

Source and Channel Polarization over Finite Fields and Reed-Solomon Matrices

Ryuhei Mori, Toshiyuki Tanaka

arxiv:1211.5264 v2 · 2012-11-22 · 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{WIEEIZVR6NUOFBBLTQ7HZUGM2K}

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	2026-05-18T02:58:32.751149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2084466b1f368e2842b9c3e7cd0ccd2a5913f4973b34b56a17f830b09b4b96c

Aliases

arxiv: 1211.5264 · arxiv_version: 1211.5264v2 · doi: 10.48550/arxiv.1211.5264 · pith_short_12: WIEEIZVR6NUO · pith_short_16: WIEEIZVR6NUOFBBL · pith_short_8: WIEEIZVR

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/WIEEIZVR6NUOFBBLTQ7HZUGM2K \
  | 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: b2084466b1f368e2842b9c3e7cd0ccd2a5913f4973b34b56a17f830b09b4b96c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02104947bff4af789e507d776e780085d8c5a306ec2aea8f310696d4b71b05b5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-11-22T11:37:24Z",
    "title_canon_sha256": "c75315f2ac3bd027e51d831766db0a86ebcadaadbcce34c9d38b468da32a8b84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5264",
    "kind": "arxiv",
    "version": 2
  }
}