Pith Number

pith:WS7RRTXA

pith:2014:WS7RRTXAKNFE7XPG6YZB6SCNEL

not attested not anchored not stored refs pending

Feasibility of underwater free space quantum key distribution

Peng Shi, Shi-Cheng Zhao, Wen-Dong Li, Yong-Jian Gu

arxiv:1402.4666 v2 · 2014-02-19 · quant-ph · physics.ao-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{WS7RRTXAKNFE7XPG6YZB6SCNEL}

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	2026-05-18T00:32:21.944426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4bf18cee0534a4fdde6f6321f484d22f2f9c704aaca8bc13dcb1bd8fdddde33

Aliases

arxiv: 1402.4666 · arxiv_version: 1402.4666v2 · doi: 10.48550/arxiv.1402.4666 · pith_short_12: WS7RRTXAKNFE · pith_short_16: WS7RRTXAKNFE7XPG · pith_short_8: WS7RRTXA

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/WS7RRTXAKNFE7XPG6YZB6SCNEL \
  | 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: b4bf18cee0534a4fdde6f6321f484d22f2f9c704aaca8bc13dcb1bd8fdddde33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92016004230860955d9d7eabfc187200054d7f434b6fa0e15fceab35119fad72",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-02-19T13:59:58Z",
    "title_canon_sha256": "517373be9fe21635fae3e1edcaf4b33438cbcda32f8f505c06681ceb9a42e9e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4666",
    "kind": "arxiv",
    "version": 2
  }
}