Pith Number

pith:KQ5XNPWF

pith:2017:KQ5XNPWFHVM3UJV54RPUKAMM4X

not attested not anchored not stored refs pending

On the Sub-optimality of Single-Letter Coding over Networks

Farhad Shirani, S. Sandeep Pradhan

arxiv:1705.00410 v1 · 2017-05-01 · 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{KQ5XNPWFHVM3UJV54RPUKAMM4X}

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	2026-05-18T00:45:17.336446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

543b76bec53d59ba26bde45f45018ce5c7d95f4e05f6913b75d51588740a0888

Aliases

arxiv: 1705.00410 · arxiv_version: 1705.00410v1 · doi: 10.48550/arxiv.1705.00410 · pith_short_12: KQ5XNPWFHVM3 · pith_short_16: KQ5XNPWFHVM3UJV5 · pith_short_8: KQ5XNPWF

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/KQ5XNPWFHVM3UJV54RPUKAMM4X \
  | 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: 543b76bec53d59ba26bde45f45018ce5c7d95f4e05f6913b75d51588740a0888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8be1b8e602e825380eea96a2dedd37515c5e9e71b4f8c0825a70758424f2973",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-01T03:15:24Z",
    "title_canon_sha256": "f5377a3e5d60779013b9d797d8c3dcc05b9f19877cdd3b84072df2365d83e0d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00410",
    "kind": "arxiv",
    "version": 1
  }
}