Pith Number

pith:Q5WAACSE

pith:2007:Q5WAACSELD7D5TCAVHFMWHSVV4

not attested not anchored not stored refs pending

On quantum advantage in dense coding

M. Horodecki, M. Piani

arxiv:quant-ph/0701134 v2 · 2007-01-18 · 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{Q5WAACSELD7D5TCAVHFMWHSVV4}

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	2026-05-18T01:37:53.596980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

876c000a4458fe3ecc40a9cacb1e55af2a31af7129f62ee70d633bec4880cbda

Aliases

arxiv: quant-ph/0701134 · arxiv_version: quant-ph/0701134v2 · doi: 10.48550/arxiv.quant-ph/0701134 · pith_short_12: Q5WAACSELD7D · pith_short_16: Q5WAACSELD7D5TCA · pith_short_8: Q5WAACSE

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/Q5WAACSELD7D5TCAVHFMWHSVV4 \
  | 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: 876c000a4458fe3ecc40a9cacb1e55af2a31af7129f62ee70d633bec4880cbda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7220daa9fefdf49f5d25c4453e47ffecaf1e03cc6df5d43f450109b934d825",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-01-18T19:06:02Z",
    "title_canon_sha256": "c1d835232950c85e3dfa282e000ca5238f4588b3b81d06592af208b0433571b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0701134",
    "kind": "arxiv",
    "version": 2
  }
}