Pith Number

pith:IHCG7Z4N

pith:2020:IHCG7Z4NKYMQZZMIOODX7G2ZYY

not attested not anchored not stored refs pending

Computing conditional entropies for quantum correlations

Hamza Fawzi, Omar Fawzi, Peter Brown

arxiv:2007.12575 v2 · 2020-07-24 · 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{IHCG7Z4NKYMQZZMIOODX7G2ZYY}

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	2026-07-05T05:02:52.082421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41c46fe78d56190ce58873877f9b59c6085840e64a583013c6afffa44a9f4226

Aliases

arxiv: 2007.12575 · arxiv_version: 2007.12575v2 · doi: 10.48550/arxiv.2007.12575 · pith_short_12: IHCG7Z4NKYMQ · pith_short_16: IHCG7Z4NKYMQZZMI · pith_short_8: IHCG7Z4N

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/IHCG7Z4NKYMQZZMIOODX7G2ZYY \
  | 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: 41c46fe78d56190ce58873877f9b59c6085840e64a583013c6afffa44a9f4226

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d6a6e637134a6f8e127029db4c9e4039e7f48acd2ae82d80862a34d19989b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-07-24T15:27:51Z",
    "title_canon_sha256": "2e8e79d75da191e0bb86d5aacc39363f13791425d3d14eba04e28a188909e916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.12575",
    "kind": "arxiv",
    "version": 2
  }
}