Pith Number

pith:HBIHL5EF

pith:2012:HBIHL5EFWTHG4YI5IPLNW4FWEC

not attested not anchored not stored refs pending

A variant of list plus CRC concatenated polar code

Gregory Bonik, Nickolai Zamarashkin, Sergei Goreinov

arxiv:1207.4661 v1 · 2012-07-19 · 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{HBIHL5EFWTHG4YI5IPLNW4FWEC}

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	2026-05-18T03:50:36.212495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

385075f485b4ce6e611d43d6db70b62097cef5a39b4d84f85a35a2a7bcaf4f02

Aliases

arxiv: 1207.4661 · arxiv_version: 1207.4661v1 · doi: 10.48550/arxiv.1207.4661 · pith_short_12: HBIHL5EFWTHG · pith_short_16: HBIHL5EFWTHG4YI5 · pith_short_8: HBIHL5EF

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/HBIHL5EFWTHG4YI5IPLNW4FWEC \
  | 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: 385075f485b4ce6e611d43d6db70b62097cef5a39b4d84f85a35a2a7bcaf4f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80ffb988d0a9cdc6223ad19de30f3a9e209c80dc384f5fad8ca8597554cce5b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-19T13:31:18Z",
    "title_canon_sha256": "49e8f61e0ddb00b9814da0e651ad149e893793f77aeeca401b7615c55fe05cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4661",
    "kind": "arxiv",
    "version": 1
  }
}