Pith Number

pith:PAF5D2JA

pith:2019:PAF5D2JAAEDSA7MWFNRFQ77EBM

not attested not anchored not stored refs pending

Extreme Spin Squeezing from Deep Reinforcement Learning

Feng Chen, Jun-jie Chen, Ling-Na Wu, Li You, Yong-Chun Liu

arxiv:1909.12519 v1 · 2019-09-27 · cond-mat.quant-gas · 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{PAF5D2JAAEDSA7MWFNRFQ77EBM}

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	2026-07-05T00:12:09.912135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

780bd1e9200107207d962b62587fe40b3f6bb904f1aeb9394267b59c8b4a9d7a

Aliases

arxiv: 1909.12519 · arxiv_version: 1909.12519v1 · doi: 10.48550/arxiv.1909.12519 · pith_short_12: PAF5D2JAAEDS · pith_short_16: PAF5D2JAAEDSA7MW · pith_short_8: PAF5D2JA

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/PAF5D2JAAEDSA7MWFNRFQ77EBM \
  | 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: 780bd1e9200107207d962b62587fe40b3f6bb904f1aeb9394267b59c8b4a9d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9849f6a0b96815789eb6258330e1d737edbffef487486873e64944fc12bc829",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2019-09-27T06:57:22Z",
    "title_canon_sha256": "b8c083ca304f54d57714f10286881b967e2e290b82b453ec91237b69b99a1883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12519",
    "kind": "arxiv",
    "version": 1
  }
}