Pith Number

pith:7E2W53HM

pith:2017:7E2W53HM7I3D75TT52CBCZ4DEN

not attested not anchored not stored refs pending

CubeSat quantum communications mission

Alex Ling, Daniel KL Oi, Edoardo Charbon, Emma Kerr, Giuseppe Vallone, Hans Kuiper, Harald Weinfurter, Malcolm Macdonald, Paolo Villoresi, Rupert Ursin, Steve Greenland

arxiv:1704.08707 v1 · 2017-04-27 · 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{7E2W53HM7I3D75TT52CBCZ4DEN}

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	2026-05-18T00:45:25.466957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9356eececfa363ff673ee84116783237faa60046281ef34c6b378d11855844e

Aliases

arxiv: 1704.08707 · arxiv_version: 1704.08707v1 · doi: 10.48550/arxiv.1704.08707 · pith_short_12: 7E2W53HM7I3D · pith_short_16: 7E2W53HM7I3D75TT · pith_short_8: 7E2W53HM

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/7E2W53HM7I3D75TT52CBCZ4DEN \
  | 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: f9356eececfa363ff673ee84116783237faa60046281ef34c6b378d11855844e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2c0e0dc77cfb4fd94c805e00116e7ad31cbdcad0a82c7e5f407dd230da31de3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-04-27T18:20:21Z",
    "title_canon_sha256": "d901744db4dfe488e2c2ce54431dd65d87b2497e02bd098cba9ea6c6709be05b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08707",
    "kind": "arxiv",
    "version": 1
  }
}