Pith Number

pith:ZZM4PTLJ

pith:2023:ZZM4PTLJLTTEK32ZLCFS2EUEI7

not attested not anchored not stored refs pending

Opportunistic Air Quality Monitoring and Forecasting with Expandable Graph Neural Networks

Hakim Hacid, Jingwei Zuo, Michele Baldo, Wenbin Li

arxiv:2307.15916 v1 · 2023-07-29 · cs.LG · cs.AI · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZZM4PTLJLTTEK32ZLCFS2EUEI7}

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	2026-07-05T06:35:56.495376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce59c7cd695ce6456f59588b2d128447ea4c5b2e217d02c124c7d91775decf8c

Aliases

arxiv: 2307.15916 · arxiv_version: 2307.15916v1 · doi: 10.48550/arxiv.2307.15916 · pith_short_12: ZZM4PTLJLTTE · pith_short_16: ZZM4PTLJLTTEK32Z · pith_short_8: ZZM4PTLJ

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/ZZM4PTLJLTTEK32ZLCFS2EUEI7 \
  | 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: ce59c7cd695ce6456f59588b2d128447ea4c5b2e217d02c124c7d91775decf8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c753841cddc51b47514aa7e13e163feba26c2e4c8c5799e1efe71201e1cda7e1",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DB"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-07-29T07:17:43Z",
    "title_canon_sha256": "6dcc2e47e9da9ee64c7a8fb0baf5a0f669dd36b06a3eb434603ead72a381c74d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.15916",
    "kind": "arxiv",
    "version": 1
  }
}