Pith Number

pith:SBKGMNVY

pith:2022:SBKGMNVYGV6NB2MPHVGJDAAAYZ

not attested not anchored not stored refs pending

Spatiotemporal continuous estimates of daily 1-km PM2.5 from 2000 to present under the Tracking Air Pollution in China (TAP) framework

Guannan Geng, Jiajun Liu, Qiang Zhang, Qingyang Xiao, Shigan Liu, Xia Meng

arxiv:2203.07591 v2 · 2022-03-15 · 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{SBKGMNVYGV6NB2MPHVGJDAAAYZ}

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	2026-07-05T04:20:45.005903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90546636b8357cd0e98f3d4c918000c66ae4dca136a48f6c52364a7d87ce0183

Aliases

arxiv: 2203.07591 · arxiv_version: 2203.07591v2 · doi: 10.48550/arxiv.2203.07591 · pith_short_12: SBKGMNVYGV6N · pith_short_16: SBKGMNVYGV6NB2MP · pith_short_8: SBKGMNVY

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/SBKGMNVYGV6NB2MPHVGJDAAAYZ \
  | 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: 90546636b8357cd0e98f3d4c918000c66ae4dca136a48f6c52364a7d87ce0183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72fb933a308b5c7e69f0f4e5554daa36609971a2cf5d62c03f1357a85b59b80f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2022-03-15T01:33:37Z",
    "title_canon_sha256": "98753ca26129d7037df5cc1eb92e4ff8158277d6e406ef6f6cde4cd2a6bf8b6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.07591",
    "kind": "arxiv",
    "version": 2
  }
}