Pith Number

pith:H6QMCFJN

pith:2017:H6QMCFJNB47WUFBT5SJJB5UZOE

not attested not anchored not stored refs pending

"The Capacity of the Relay Channel": Solution to Cover's Problem in the Gaussian Case

Ayfer Ozgur, Leighton Pate Barnes, Xiugang Wu

arxiv:1701.02043 v4 · 2017-01-09 · 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{H6QMCFJNB47WUFBT5SJJB5UZOE}

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	2026-05-18T00:03:57.177814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fa0c1152d0f3f6a1433ec9290f699711f53b5ca7b181c38a9bfa3c82b74fc71

Aliases

arxiv: 1701.02043 · arxiv_version: 1701.02043v4 · doi: 10.48550/arxiv.1701.02043 · pith_short_12: H6QMCFJNB47W · pith_short_16: H6QMCFJNB47WUFBT · pith_short_8: H6QMCFJN

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/H6QMCFJNB47WUFBT5SJJB5UZOE \
  | 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: 3fa0c1152d0f3f6a1433ec9290f699711f53b5ca7b181c38a9bfa3c82b74fc71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "701f23b7bada1ac8ab646429e993ba73749bb66d02926d978b03c6e39ee98bb3",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-01-09T01:11:12Z",
    "title_canon_sha256": "d4934997ef79af15faf536efcff07495766ffae254bba3640061f83f8e820903"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02043",
    "kind": "arxiv",
    "version": 4
  }
}