Pith Number

pith:CE2NX4NG

pith:2019:CE2NX4NG4BHKZC4X4D2XDDSKTE

not attested not anchored not stored refs pending

Observing geometry of quantum states in a three-level system

Aonan Zhang, Bei Zeng, Huichao Xu, Jie Xie, Kaimin Zheng, Lijian Zhang, Ningping Cao, Nung-sing Sze, Ping Xu, Yiu-Tung Poon

arxiv:1909.05463 v2 · 2019-09-12 · 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{CE2NX4NG4BHKZC4X4D2XDDSKTE}

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	2026-07-05T02:07:26.292685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1134dbf1a6e04eac8b97e0f5718e4a992af95f15caeb0b8fbbd8e31b6907ac7a

Aliases

arxiv: 1909.05463 · arxiv_version: 1909.05463v2 · doi: 10.48550/arxiv.1909.05463 · pith_short_12: CE2NX4NG4BHK · pith_short_16: CE2NX4NG4BHKZC4X · pith_short_8: CE2NX4NG

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/CE2NX4NG4BHKZC4X4D2XDDSKTE \
  | 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: 1134dbf1a6e04eac8b97e0f5718e4a992af95f15caeb0b8fbbd8e31b6907ac7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c838fabf5c0fbfc9527944a23e4bf62a3e56e3f792d16c2547ff4a7284be9be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-09-12T05:51:19Z",
    "title_canon_sha256": "445187aabf38a444dfb9acd260c753be63374150a807ec2b9c0bffda3345aa1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05463",
    "kind": "arxiv",
    "version": 2
  }
}