Pith Number

pith:XDP4KSXK

pith:2020:XDP4KSXKFNANMJ3NN6M4YQYLRR

not attested not anchored not stored refs pending

Direct approach to realising quantum filters for high-precision measurements

Haixing Miao, Hendra Nurdin, Joe Bentley, Yanbei Chen

arxiv:2002.07644 v6 · 2020-02-18 · quant-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDP4KSXKFNANMJ3NN6M4YQYLRR}

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	2026-07-05T02:20:53.797811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8dfc54aea2b40d6276d6f99cc430b8c57089e72d4158b62a1bfbd33f714de61

Aliases

arxiv: 2002.07644 · arxiv_version: 2002.07644v6 · doi: 10.48550/arxiv.2002.07644 · pith_short_12: XDP4KSXKFNAN · pith_short_16: XDP4KSXKFNANMJ3N · pith_short_8: XDP4KSXK

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/XDP4KSXKFNANMJ3NN6M4YQYLRR \
  | 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: b8dfc54aea2b40d6276d6f99cc430b8c57089e72d4158b62a1bfbd33f714de61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd44969185dff30166afc8a4486dee167684a61e02db27a5b36442d0802e7f20",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-18T15:32:27Z",
    "title_canon_sha256": "d4d1b7860c32ee55a3c83427bacc6b745b419beaf71eddb564394612c1f29f3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.07644",
    "kind": "arxiv",
    "version": 6
  }
}