Pith Number

pith:MCCXPPFL

pith:2018:MCCXPPFLZF7HB656OJ5RJQHWU4

not attested not anchored not stored refs pending

Structural Results and Improved Upper Bounds on the Capacity of the Discrete-Time Poisson Channel

Jo\~ao Ribeiro, Mahdi Cheraghchi

arxiv:1801.02745 v6 · 2018-01-09 · 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{MCCXPPFLZF7HB656OJ5RJQHWU4}

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	2026-05-18T00:10:17.128342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

608577bcabc97e70fbbe727b14c0f6a7090d31407bd33977518d53d37a95fef1

Aliases

arxiv: 1801.02745 · arxiv_version: 1801.02745v6 · doi: 10.48550/arxiv.1801.02745 · pith_short_12: MCCXPPFLZF7H · pith_short_16: MCCXPPFLZF7HB656 · pith_short_8: MCCXPPFL

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/MCCXPPFLZF7HB656OJ5RJQHWU4 \
  | 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: 608577bcabc97e70fbbe727b14c0f6a7090d31407bd33977518d53d37a95fef1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f30f68411d87432d24490795a436bba52cd433cdaaad8aa9d9a057c2dca7936",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-09T01:43:19Z",
    "title_canon_sha256": "13a8223c69f396f865950aa83552d840962e60d2dfae6105dbff6e27c911c186"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02745",
    "kind": "arxiv",
    "version": 6
  }
}