Pith Number

pith:5W2UTQHQ

pith:2017:5W2UTQHQBYD7SRHPSI5U3ZJ72H

not attested not anchored not stored refs pending

Space division multiplexing chip-to-chip quantum key distribution

Davide Bacco, Karsten Rottwit, Kjeld Dalgaard, Leif Katsuo Oxenl{\o}we, Yunhong Ding

arxiv:1710.01905 v1 · 2017-10-05 · 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{5W2UTQHQBYD7SRHPSI5U3ZJ72H}

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	2026-05-18T00:33:38.105214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edb549c0f00e07f944ef923b4de53fd1e365fc6430509cdc0ff63809b9430d2f

Aliases

arxiv: 1710.01905 · arxiv_version: 1710.01905v1 · doi: 10.48550/arxiv.1710.01905 · pith_short_12: 5W2UTQHQBYD7 · pith_short_16: 5W2UTQHQBYD7SRHP · pith_short_8: 5W2UTQHQ

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/5W2UTQHQBYD7SRHPSI5U3ZJ72H \
  | 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: edb549c0f00e07f944ef923b4de53fd1e365fc6430509cdc0ff63809b9430d2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2a26bc89bc147893c73e353792ea2a3bec21812bbb328b3c119b46d4a23043f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-10-05T07:59:31Z",
    "title_canon_sha256": "9cf2b5d82e6d72906f59835598bf5cc9339d876018477cd891faf4fe433e9125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.01905",
    "kind": "arxiv",
    "version": 1
  }
}