Pith Number

pith:RBZTL7D3

pith:2014:RBZTL7D33HOJOKNYHH23Y5YT2X

not attested not anchored not stored refs pending

Polar Codes for Distributed Hierarchical Source Coding

Alexander Barg, Min Ye

arxiv:1404.5501 v1 · 2014-04-22 · 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{RBZTL7D33HOJOKNYHH23Y5YT2X}

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	2026-05-18T01:32:42.395881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

887335fc7bd9dc9729b839f5bc7713d5e670b409f2e8fa9f1ce98399cd7ea1c8

Aliases

arxiv: 1404.5501 · arxiv_version: 1404.5501v1 · doi: 10.48550/arxiv.1404.5501 · pith_short_12: RBZTL7D33HOJ · pith_short_16: RBZTL7D33HOJOKNY · pith_short_8: RBZTL7D3

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/RBZTL7D33HOJOKNYHH23Y5YT2X \
  | 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: 887335fc7bd9dc9729b839f5bc7713d5e670b409f2e8fa9f1ce98399cd7ea1c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e08303d9b7dce6704799bcb10a812ccee6eabe8cb7d08d10246a779b58d1edc1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-22T14:00:54Z",
    "title_canon_sha256": "54713674dadaafb439dbb6a277a9fdc1d479fd2d059a48f0c90980c82074aee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5501",
    "kind": "arxiv",
    "version": 1
  }
}