Pith Number

pith:QUCPMTTE

pith:2015:QUCPMTTELRHFCXW53NBFJ6KASO

not attested not anchored not stored refs pending

Practical long-distance quantum key distribution through concatenated entanglement swapping with parametric down-conversion sources

Aeysha Khalique, Barry C. Sanders

arxiv:1501.03317 v2 · 2015-01-14 · 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{QUCPMTTELRHFCXW53NBFJ6KASO}

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	2026-05-18T01:21:13.581988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8504f64e645c4e515edddb4254f94093b54a611a768a3b0fe5d89d9d4b0882a0

Aliases

arxiv: 1501.03317 · arxiv_version: 1501.03317v2 · doi: 10.48550/arxiv.1501.03317 · pith_short_12: QUCPMTTELRHF · pith_short_16: QUCPMTTELRHFCXW5 · pith_short_8: QUCPMTTE

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/QUCPMTTELRHFCXW53NBFJ6KASO \
  | 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: 8504f64e645c4e515edddb4254f94093b54a611a768a3b0fe5d89d9d4b0882a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b40f5e1add67c5305b0cfcaec67ca74ea781594e7e953cddd6f0ee8e80147528",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-01-14T11:17:38Z",
    "title_canon_sha256": "b15a5ed3dd13e3b215ed8423b38ffc8ffd7d18db539a324c4edeb66149c10783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03317",
    "kind": "arxiv",
    "version": 2
  }
}