Pith Number

pith:LAKP5Z6S

pith:2020:LAKP5Z6SHMQGIYMQDV7BNE2DBK

not attested not anchored not stored refs pending

Tight security bounds for decoy-state quantum key distribution

Hua-Lei Yin, Jie Gu, Min-Gang Zhou, Yuan-Mei Xie, Yu-Shuo Lu, Zeng-Bing Chen

arxiv:2002.06530 v1 · 2020-02-16 · 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{LAKP5Z6SHMQGIYMQDV7BNE2DBK}

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	2026-07-05T02:28:04.416201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5814fee7d23b206461901d7e1693430a9a961f018be3fbf64b6d42a01a897aef

Aliases

arxiv: 2002.06530 · arxiv_version: 2002.06530v1 · doi: 10.48550/arxiv.2002.06530 · pith_short_12: LAKP5Z6SHMQG · pith_short_16: LAKP5Z6SHMQGIYMQ · pith_short_8: LAKP5Z6S

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/LAKP5Z6SHMQGIYMQDV7BNE2DBK \
  | 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: 5814fee7d23b206461901d7e1693430a9a961f018be3fbf64b6d42a01a897aef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "348f9e4f3246d75e1f53872833eef5ec1d2c899d78cd03bd17f63ea89ab5cc3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-16T07:48:25Z",
    "title_canon_sha256": "30c03a187a7a2df2bfabbcd8e39475b32e68993bc642779368f4e000b41630ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.06530",
    "kind": "arxiv",
    "version": 1
  }
}