Pith Number

pith:7BK2VDTV

pith:2023:7BK2VDTVJV6Z4KJN22IWJSF3HL

not attested not anchored not stored refs pending

A Bregman Proximal Perspective on Classical and Quantum Blahut-Arimoto Algorithms

Hamza Fawzi, James Saunderson, Kerry He

arxiv:2306.04492 v3 · 2023-06-07 · cs.IT · math.IT · math.OC · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7BK2VDTVJV6Z4KJN22IWJSF3HL}

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	2026-07-05T08:28:32.783117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f855aa8e754d7d9e292dd69164c8bb3adb72c7f7ac959c6c40f80a8234449279

Aliases

arxiv: 2306.04492 · arxiv_version: 2306.04492v3 · doi: 10.48550/arxiv.2306.04492 · pith_short_12: 7BK2VDTVJV6Z · pith_short_16: 7BK2VDTVJV6Z4KJN · pith_short_8: 7BK2VDTV

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/7BK2VDTVJV6Z4KJN22IWJSF3HL \
  | 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: f855aa8e754d7d9e292dd69164c8bb3adb72c7f7ac959c6c40f80a8234449279

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79fed2b05f3e0263731d1bf5cef93fe196c154d0097e279f64d696f6b590d90c",
    "cross_cats_sorted": [
      "math.IT",
      "math.OC",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2023-06-07T15:02:10Z",
    "title_canon_sha256": "27a277bc26e275a982e689f22cbb3ac957ecb0fdc0e12284768fe3d5ff477072"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.04492",
    "kind": "arxiv",
    "version": 3
  }
}