Pith Number

pith:CECR65BI

pith:2019:CECR65BI67Z5CZUKF3LIBZER7A

not attested not anchored not stored refs pending

Device-independent quantum secure direct communication

Gui-Lu Long, Lan Zhou, Yu-Bo Sheng

arxiv:1907.01235 v1 · 2019-07-02 · 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{CECR65BI67Z5CZUKF3LIBZER7A}

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	2026-05-17T23:41:40.879518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11051f7428f7f3d1668a2ed680e491f805a36fdc415e246dec8c29719e38933b

Aliases

arxiv: 1907.01235 · arxiv_version: 1907.01235v1 · doi: 10.48550/arxiv.1907.01235 · pith_short_12: CECR65BI67Z5 · pith_short_16: CECR65BI67Z5CZUK · pith_short_8: CECR65BI

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/CECR65BI67Z5CZUKF3LIBZER7A \
  | 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: 11051f7428f7f3d1668a2ed680e491f805a36fdc415e246dec8c29719e38933b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7350b12280f89d7ac8f73fcdba59ecb75550fc89ea3f8967f8fde7c742cd79b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-07-02T08:40:12Z",
    "title_canon_sha256": "1d889404d43a2231d61a69ab5666215236b1b7849a378eeeae261a49f744b229"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01235",
    "kind": "arxiv",
    "version": 1
  }
}