Pith Number

pith:34IFW7VM

pith:2013:34IFW7VMC7GIXFVBRMWFULIXXC

not attested not anchored not stored refs pending

An Efficient Feedback Coding Scheme with Low Error Probability for Discrete Memoryless Channels

Abbas El Gamal, Cheuk Ting Li

arxiv:1311.0100 v4 · 2013-11-01 · 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{34IFW7VMC7GIXFVBRMWFULIXXC}

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	2026-05-18T01:05:13.039231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df105b7eac17cc8b96a18b2c5a2d17b8ae6776b65acc78ed9efbfc3e2c4aecc9

Aliases

arxiv: 1311.0100 · arxiv_version: 1311.0100v4 · doi: 10.48550/arxiv.1311.0100 · pith_short_12: 34IFW7VMC7GI · pith_short_16: 34IFW7VMC7GIXFVB · pith_short_8: 34IFW7VM

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/34IFW7VMC7GIXFVBRMWFULIXXC \
  | 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: df105b7eac17cc8b96a18b2c5a2d17b8ae6776b65acc78ed9efbfc3e2c4aecc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1b140e36dc62b4d0ec87210e9161f4d59e69404964b1e455565fb346951c7bb",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-11-01T06:35:17Z",
    "title_canon_sha256": "6b8e99557b6d890a004f6124bf7e74763bcc6cb5f6a83b890565f0820d59d7b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0100",
    "kind": "arxiv",
    "version": 4
  }
}