Pith Number

pith:NDXGDTBF

pith:2023:NDXGDTBFHX3WWTCF5ON7D7BRO4

not attested not anchored not stored refs pending

Single-Photon-Memory Measurement-Device-Independent Quantum Secure Direct Communication -- Part I: Its Fundamentals and Evolution

Dong Pan, Gui-Lu Long, Lajos Hanzo, Xiang-Jie Li

arxiv:2304.09379 v1 · 2023-04-19 · 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{NDXGDTBFHX3WWTCF5ON7D7BRO4}

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	2026-07-05T06:02:37.677027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68ee61cc253df76b4c45eb9bf1fc317726add80c59ee2d5c0b97f2120a747fea

Aliases

arxiv: 2304.09379 · arxiv_version: 2304.09379v1 · doi: 10.48550/arxiv.2304.09379 · pith_short_12: NDXGDTBFHX3W · pith_short_16: NDXGDTBFHX3WWTCF · pith_short_8: NDXGDTBF

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/NDXGDTBFHX3WWTCF5ON7D7BRO4 \
  | 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: 68ee61cc253df76b4c45eb9bf1fc317726add80c59ee2d5c0b97f2120a747fea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a73d82eae2383c07a890fd36207fe5c65a68952288e7e6f3517e7b60edc55699",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-04-19T02:26:25Z",
    "title_canon_sha256": "4544018b02a84229f7965cb1edb32b262c4ae5b6e15e026b48b3e19c0151fc77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.09379",
    "kind": "arxiv",
    "version": 1
  }
}