Pith Number

pith:7KT4BFUR

pith:2019:7KT4BFURWMSCF2VB45RKCCWDZ3

not attested not anchored not stored refs pending

A Lower Bound on the Essential Interactive Capacity of Binary Memoryless Symmetric Channels

Assaf Ben-Yishai, Ofer Shayevitz, Or Ordentlich, Young-Han Kim

arxiv:1908.07367 v2 · 2019-08-20 · 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{7KT4BFURWMSCF2VB45RKCCWDZ3}

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	2026-07-05T03:05:09.495500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faa7c09691b32422eaa1e762a10ac3ced7eef718f0a02a9ef90b0ddaf2b34151

Aliases

arxiv: 1908.07367 · arxiv_version: 1908.07367v2 · doi: 10.48550/arxiv.1908.07367 · pith_short_12: 7KT4BFURWMSC · pith_short_16: 7KT4BFURWMSCF2VB · pith_short_8: 7KT4BFUR

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/7KT4BFURWMSCF2VB45RKCCWDZ3 \
  | 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: faa7c09691b32422eaa1e762a10ac3ced7eef718f0a02a9ef90b0ddaf2b34151

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecaf66cb0692b4765048852cfa028101097b35bfa9fb728b3c0e9b1f7734d6c4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-08-20T14:08:17Z",
    "title_canon_sha256": "92d23bece9274110316b1d1e2ea39e3b489205368a088d575b333c747724d763"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07367",
    "kind": "arxiv",
    "version": 2
  }
}