Pith Number

pith:AOTGQO4M

pith:2026:AOTGQO4MFEGRLUZRZEKYG6FIJR

not attested not anchored not stored refs pending

Superadditivity for Entanglement-Assisted Communication

Hao-Chung Cheng, Mario Berta

arxiv:2607.15151 v1 · 2026-07-16 · quant-ph · cs.IT · math-ph · math.IT · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AOTGQO4MFEGRLUZRZEKYG6FIJR}

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	2026-07-17T01:22:11.957422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03a6683b8c290d15d331c9158378a84c53fff81fbbe1671771e22be38b1ca723

Aliases

arxiv: 2607.15151 · arxiv_version: 2607.15151v1 · doi: 10.48550/arxiv.2607.15151 · pith_short_12: AOTGQO4MFEGR · pith_short_16: AOTGQO4MFEGRLUZR · pith_short_8: AOTGQO4M

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/AOTGQO4MFEGRLUZRZEKYG6FIJR \
  | 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: 03a6683b8c290d15d331c9158378a84c53fff81fbbe1671771e22be38b1ca723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7648e5e71931b9439b8ba59d340d2ed213504a0521a3894f9a9ea52e009b5b9",
    "cross_cats_sorted": [
      "cs.IT",
      "math-ph",
      "math.IT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-16T15:52:04Z",
    "title_canon_sha256": "7b79d349278ffea417263e55a14235d028b3a8355c0f9f83fdf9bd7327dc1036"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15151",
    "kind": "arxiv",
    "version": 1
  }
}