Pith Number

pith:FG4ZWBJJ

pith:2015:FG4ZWBJJSM2OTXJD2SWW5DPOTZ

not attested not anchored not stored refs pending

Experimental single photon exchange along a space link of 7000 km

Daniele Dequal, Davide Bacco, Giuseppe Bianco, Giuseppe Vallone, Paolo Villoresi, Simone Gaiarin, Vincenza Luceri

arxiv:1509.05692 v2 · 2015-09-18 · 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{FG4ZWBJJSM2OTXJD2SWW5DPOTZ}

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	2026-05-18T01:21:54.181343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29b99b05299334e9dd23d4ad6e8dee9e469deb7687d758d5e10bd2904b91b633

Aliases

arxiv: 1509.05692 · arxiv_version: 1509.05692v2 · doi: 10.48550/arxiv.1509.05692 · pith_short_12: FG4ZWBJJSM2O · pith_short_16: FG4ZWBJJSM2OTXJD · pith_short_8: FG4ZWBJJ

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/FG4ZWBJJSM2OTXJD2SWW5DPOTZ \
  | 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: 29b99b05299334e9dd23d4ad6e8dee9e469deb7687d758d5e10bd2904b91b633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68dd98d15eefcdbf614a4b5bc5cafaefdf510b001fa9287d048a6982cc0aed26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-09-18T16:38:36Z",
    "title_canon_sha256": "bcd3024885cfff7c8283ccb34ec457c542259eb1e2c7620e33804db1b98022ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05692",
    "kind": "arxiv",
    "version": 2
  }
}