Pith Number

pith:ZU6FA3AQ

pith:2017:ZU6FA3AQQHN5RYHJGIW6WVRQEG

not attested not anchored not stored refs pending

Estimating regional ground-level PM2.5 directly from satellite top-of-atmosphere reflectance using deep learning

Huanfeng Shen, Liangpei Zhang, Qiangqiang Yuan, Tongwen Li

arxiv:1709.05912 v2 · 2017-09-18 · physics.ao-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{ZU6FA3AQQHN5RYHJGIW6WVRQEG}

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	2026-05-17T23:52:34.235975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd3c506c1081dbd8e0e9322deb5630218ce7631bdf688a177446252a8ef7590e

Aliases

arxiv: 1709.05912 · arxiv_version: 1709.05912v2 · doi: 10.48550/arxiv.1709.05912 · pith_short_12: ZU6FA3AQQHN5 · pith_short_16: ZU6FA3AQQHN5RYHJ · pith_short_8: ZU6FA3AQ

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/ZU6FA3AQQHN5RYHJGIW6WVRQEG \
  | 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: cd3c506c1081dbd8e0e9322deb5630218ce7631bdf688a177446252a8ef7590e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdb1c97b8715cef50ad6a33b3de33bb9751aaa2f6d2ce82a9a8eb0e579b1b36a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2017-09-18T13:26:25Z",
    "title_canon_sha256": "2165d76ed9c73c41716b4df504a43bd67234227e19cf55eb150f4aae1ae252c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05912",
    "kind": "arxiv",
    "version": 2
  }
}