Pith Number

pith:6FGUPVJS

pith:2019:6FGUPVJSOTEYN6QWOLDA46HGJZ

not attested not anchored not stored refs pending

Quantum Coherence Witness with Untrusted Measurement Devices

Hongyi Zhou, Jian-Wei Pan, Jian-Yu Guan, Jun Zhang, Qiang Zhang, Xiongfeng Ma, You-Qi Nie

arxiv:1908.05022 v1 · 2019-08-14 · 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{6FGUPVJSOTEYN6QWOLDA46HGJZ}

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	2026-07-05T00:00:27.801599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f14d47d53274c986fa1672c60e78e64e776a1f8c34160310b0fa955a2cd0609c

Aliases

arxiv: 1908.05022 · arxiv_version: 1908.05022v1 · doi: 10.48550/arxiv.1908.05022 · pith_short_12: 6FGUPVJSOTEY · pith_short_16: 6FGUPVJSOTEYN6QW · pith_short_8: 6FGUPVJS

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/6FGUPVJSOTEYN6QWOLDA46HGJZ \
  | 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: f14d47d53274c986fa1672c60e78e64e776a1f8c34160310b0fa955a2cd0609c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "974e6354f131f0938976fa557278d77954d78f083d0338199373e00218a55d5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-14T09:00:53Z",
    "title_canon_sha256": "00c4a00d0a1101030d08a50cebd32045b093dca0f22cc0ebc3428cce23dff581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05022",
    "kind": "arxiv",
    "version": 1
  }
}