Pith Number

pith:HEI36JMZ

pith:2013:HEI36JMZFTX7BDVRHGOFUXMUAQ

not attested not anchored not stored refs pending

Blahut-Arimoto Algorithm and Code Design for Action-Dependent Source Coding Problems

Kasper Fl{\o}e Trillingsgaard, Osvaldo Simeone, Petar Popovski, Torben Larsen

arxiv:1301.6190 v1 · 2013-01-25 · 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{HEI36JMZFTX7BDVRHGOFUXMUAQ}

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	2026-05-18T01:09:33.240621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3911bf25992ceff08eb1399c5a5d94043cb69e6f894f7a59631762c7b4847d9f

Aliases

arxiv: 1301.6190 · arxiv_version: 1301.6190v1 · doi: 10.48550/arxiv.1301.6190 · pith_short_12: HEI36JMZFTX7 · pith_short_16: HEI36JMZFTX7BDVR · pith_short_8: HEI36JMZ

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/HEI36JMZFTX7BDVRHGOFUXMUAQ \
  | 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: 3911bf25992ceff08eb1399c5a5d94043cb69e6f894f7a59631762c7b4847d9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e10cd417b67ac022d951ad0e77fe4c352b5f558de90292b3bc18df8d946fd2e5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-25T23:02:15Z",
    "title_canon_sha256": "c83da5a1f7324683955ad414c327b04748eae7331bdba5cb212d49b9820f8ee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6190",
    "kind": "arxiv",
    "version": 1
  }
}