Pith Number

pith:VQJSIWLO

pith:2017:VQJSIWLODUZMFNHGWTFOSWPKNP

not attested not anchored not stored refs pending

SpooQySats: cubesats to demonstrate quantum key distribution technologies

Alexander Ling, James A. Grieve, Rakhitha C.M.R.B. Chandrasekara, Robert Bedington

arxiv:1710.05487 v1 · 2017-10-16 · 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{VQJSIWLODUZMFNHGWTFOSWPKNP}

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	2026-05-18T00:09:19.593892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac1324596e1d32c2b4e6b4cae959ea6bd0466307bede6dab799041051b23e4d0

Aliases

arxiv: 1710.05487 · arxiv_version: 1710.05487v1 · doi: 10.48550/arxiv.1710.05487 · pith_short_12: VQJSIWLODUZM · pith_short_16: VQJSIWLODUZMFNHG · pith_short_8: VQJSIWLO

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/VQJSIWLODUZMFNHGWTFOSWPKNP \
  | 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: ac1324596e1d32c2b4e6b4cae959ea6bd0466307bede6dab799041051b23e4d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d9e33ed555a0fba701c6d9e1843faa4e27b3bfbb8eb7922892a4641bd7044e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-10-16T03:17:04Z",
    "title_canon_sha256": "ab637f67b6a5401e3bb6f5762de14a0312a77fab3fab6a87df046abc738f5676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05487",
    "kind": "arxiv",
    "version": 1
  }
}