Pith Number

pith:54QD7QLF

pith:2018:54QD7QLFSX7DMZNTDHFF7J3PPX

not attested not anchored not stored refs pending

Long range fading free phase-sensitive reflectometry based on multi-frequency NLFM pulse

Dingrong Qu, Feng Qiu, Guolu Yin, Hua Zheng, Jingdong Zhang, Min Liu, Tao Zhu, Xianbing Huang

arxiv:1803.09839 v2 · 2018-03-21 · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54QD7QLFSX7DMZNTDHFF7J3PPX}

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	2026-05-18T00:19:40.895729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef203fc16595fe3665b319ca5fa76f7df4b62eea406bca6d2399a5f2f124670c

Aliases

arxiv: 1803.09839 · arxiv_version: 1803.09839v2 · doi: 10.48550/arxiv.1803.09839 · pith_short_12: 54QD7QLFSX7D · pith_short_16: 54QD7QLFSX7DMZNT · pith_short_8: 54QD7QLF

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/54QD7QLFSX7DMZNTDHFF7J3PPX \
  | 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: ef203fc16595fe3665b319ca5fa76f7df4b62eea406bca6d2399a5f2f124670c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a97db0144a827f1ce9774054a08f2b56a368f9cb1d0f259ef454d1172871b4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2018-03-21T15:31:24Z",
    "title_canon_sha256": "ec13897153f4a16497b806039fc92258eb86cbd5d36a23c17ab3f7a5afdfe3a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09839",
    "kind": "arxiv",
    "version": 2
  }
}