Pith Number

pith:2SUDOH3J

pith:2015:2SUDOH3JL7MF5YBCSUQS4IFV6Q

not attested not anchored not stored refs pending

Hyperdense coding and superadditivity of classical capacities in hypersphere theories

Dami\'an Pital\'ua-Garc\'ia, Serge Massar, Stefano Pironio

arxiv:1504.05147 v2 · 2015-04-20 · 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{2SUDOH3JL7MF5YBCSUQS4IFV6Q}

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	2026-05-18T01:28:56.685053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a8371f695fd85ee02295212e20b5f429a8762a12dc3f3ccae436753fe29eae

Aliases

arxiv: 1504.05147 · arxiv_version: 1504.05147v2 · doi: 10.48550/arxiv.1504.05147 · pith_short_12: 2SUDOH3JL7MF · pith_short_16: 2SUDOH3JL7MF5YBC · pith_short_8: 2SUDOH3J

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/2SUDOH3JL7MF5YBCSUQS4IFV6Q \
  | 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: d4a8371f695fd85ee02295212e20b5f429a8762a12dc3f3ccae436753fe29eae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eae7eca75226e794b647f0a33a0fbf3fb6a7ffeab259a3037a3430f9e055a38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-20T18:31:22Z",
    "title_canon_sha256": "c65b4f9a28ea61fc6f3541b680993a9c4e5c4c6760a920497b6e52bae75022bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05147",
    "kind": "arxiv",
    "version": 2
  }
}