Pith Number

pith:BF7WTTW2

pith:2017:BF7WTTW23ZAEXXI7HGKT6ETME2

not attested not anchored not stored refs pending

First-Photon Ghost Imaging

Guihua Zeng, Huichao Chen, Jianhong Shi, Xialin Liu

arxiv:1706.06741 v1 · 2017-06-21 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BF7WTTW23ZAEXXI7HGKT6ETME2}

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	2026-05-18T00:41:57.006831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

097f69cedade404bdd1f39953f126c2698097aafbf5a8110a021a1065e831d0f

Aliases

arxiv: 1706.06741 · arxiv_version: 1706.06741v1 · doi: 10.48550/arxiv.1706.06741 · pith_short_12: BF7WTTW23ZAE · pith_short_16: BF7WTTW23ZAEXXI7 · pith_short_8: BF7WTTW2

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/BF7WTTW23ZAEXXI7HGKT6ETME2 \
  | 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: 097f69cedade404bdd1f39953f126c2698097aafbf5a8110a021a1065e831d0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f36e94c01cf1b6039bb31d537830b750f6ba119b0eb84f6edc56a807f5f594e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-06-21T05:09:09Z",
    "title_canon_sha256": "d5b49e6c2d812f9a26899608dd1882e472d5c40ae3555d6b3b37d3bef56620e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06741",
    "kind": "arxiv",
    "version": 1
  }
}