Pith Number

pith:X7XPCEJN

pith:2008:X7XPCEJNNFQVXLFRYIQLFFPDQI

not attested not anchored not stored refs pending

Space-QUEST: Experiments with quantum entanglement in space

Alejandra Valencia, Alessandro Fedrizzi, Antonio Acin, Anton Zeilinger, Arturo Ortigosa-Blanch, Caslav Brukner, Cesare Barbieri, Clovis J. de Matos, Dirk Giggenbach, Etienne Samain, Gerard Milburn, Giuseppe Bianco, Gregor Weihs, Harald Weinfurter, Ian Walmsley, Johannes Kofler, John Rarity, Jose Capmany, Josep M. Perdigues, Juan P. Torres, Luigi Cacciapuoti, Marek Zukowski, Markus Aspelmeyer, Momtchil Peev, Morio Toyoshima, Nikolaos Solomos, Norbert Lutkenhaus, Paolo Villoresi, Raymond Laflamme, Renato Renner, Robert H. Hadfield, Rupert Ursin, Sergio Cova, Thomas Jennewein, Thomas Scheidl, Timothy Ralph, Valerio Pruneri, Walter Leeb, Wolfgang Tittel

arxiv:0806.0945 v1 · 2008-06-05 · 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{X7XPCEJNNFQVXLFRYIQLFFPDQI}

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	2026-05-18T02:15:51.927039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfeef1112d69615bacb1c220b295e382024aede78f770f6f414a82bcd6d3a64f

Aliases

arxiv: 0806.0945 · arxiv_version: 0806.0945v1 · doi: 10.48550/arxiv.0806.0945 · pith_short_12: X7XPCEJNNFQV · pith_short_16: X7XPCEJNNFQVXLFR · pith_short_8: X7XPCEJN

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/X7XPCEJNNFQVXLFRYIQLFFPDQI \
  | 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: bfeef1112d69615bacb1c220b295e382024aede78f770f6f414a82bcd6d3a64f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "312d5e5163ffa32c7d7a4ecc00f48902c1a0331cf64d089ced776afa0a0c79da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-06-05T15:33:47Z",
    "title_canon_sha256": "e5ce411db78fe2f2930822b118f041cdc1adf61bc6306a6cc87b7c68a4eab399"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.0945",
    "kind": "arxiv",
    "version": 1
  }
}