Pith Number

pith:J4URGFKM

pith:2019:J4URGFKMP2UPOU6JBJWESCDXMX

not attested not anchored not stored refs pending

Quantumness protection for open systems in a double-layer environment

Jia-Ming Zhang, Jun Jing, Shi-Yao Zhu, Yu-Long Qiao, Yusui Chen

arxiv:1905.07901 v1 · 2019-05-20 · 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{J4URGFKMP2UPOU6JBJWESCDXMX}

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	2026-05-17T23:45:48.173382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f2913154c7ea8f753c90a6c49087765fe9ec8e7802bc65be9cb48ff9270043e

Aliases

arxiv: 1905.07901 · arxiv_version: 1905.07901v1 · doi: 10.48550/arxiv.1905.07901 · pith_short_12: J4URGFKMP2UP · pith_short_16: J4URGFKMP2UPOU6J · pith_short_8: J4URGFKM

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/J4URGFKMP2UPOU6JBJWESCDXMX \
  | 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: 4f2913154c7ea8f753c90a6c49087765fe9ec8e7802bc65be9cb48ff9270043e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1edcdc27f1f90e6b7109b841dedbee2e940562d9c1cb1b93b25fa666505b58af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-05-20T06:30:55Z",
    "title_canon_sha256": "624660cb255b515281b3e6f6bb391debb38ee4d1826c8d61d2f5e0fd2b838bb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07901",
    "kind": "arxiv",
    "version": 1
  }
}