Pith Number

pith:GADHJYWG

pith:2011:GADHJYWGWSICPPYRVEQ7FXTC3J

not attested not anchored not stored refs pending

A linear program for the finite block length converse of Polyanskiy-Poor-Verd\'u via non-signalling codes

William Matthews

arxiv:1109.5417 v3 · 2011-09-25 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GADHJYWGWSICPPYRVEQ7FXTC3J}

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	2026-05-18T01:23:33.877528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

300674e2c6b49027bf11a921f2de62da5e349a8a13ba107fd75246867de7eb57

Aliases

arxiv: 1109.5417 · arxiv_version: 1109.5417v3 · doi: 10.48550/arxiv.1109.5417 · pith_short_12: GADHJYWGWSIC · pith_short_16: GADHJYWGWSICPPYR · pith_short_8: GADHJYWG

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/GADHJYWGWSICPPYRVEQ7FXTC3J \
  | 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: 300674e2c6b49027bf11a921f2de62da5e349a8a13ba107fd75246867de7eb57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bfc0117401428606c311db575e709f45dff7c73074d07c016abb04dc5957611",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-25T23:33:58Z",
    "title_canon_sha256": "955b16a183950a286ba9a5cd3d9944cdaad87f652d0c90039f24face729ed7ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5417",
    "kind": "arxiv",
    "version": 3
  }
}