Pith Number

pith:APHTCD7V

pith:2025:APHTCD7VB7JYQMHQJBT7JK37JP

not attested not anchored not stored refs pending

Efficiently Computable Limits on EPR Pair Generation in Quantum Broadcast Channels

Debbie Leung, Farzin Salek, Hjalmar Rall, Patrick Hayden

arxiv:2505.07218 v1 · 2025-05-12 · 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{APHTCD7VB7JYQMHQJBT7JK37JP}

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	2026-07-05T11:01:44.485133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03cf310ff50fd38830f04867f4ab7f4bda754d6ad7263ab7692470e466150615

Aliases

arxiv: 2505.07218 · arxiv_version: 2505.07218v1 · doi: 10.48550/arxiv.2505.07218 · pith_short_12: APHTCD7VB7JY · pith_short_16: APHTCD7VB7JYQMHQ · pith_short_8: APHTCD7V

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/APHTCD7VB7JYQMHQJBT7JK37JP \
  | 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: 03cf310ff50fd38830f04867f4ab7f4bda754d6ad7263ab7692470e466150615

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "904777737591acb4a5425ed758beca123dd462782ba7de8e0b8103a431fa5480",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-05-12T04:15:21Z",
    "title_canon_sha256": "5cb24832e71b4e7d98ec9a28aa6714b1b6a027ca948e6ca0ea2540dd4931e6ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.07218",
    "kind": "arxiv",
    "version": 1
  }
}