Pith Number

pith:5A3JEMPS

pith:2025:5A3JEMPSDFIBUKKZ6IHKNYYC47

not attested not anchored not stored refs pending

City-level energy and emission assessment based on 20+ million electric vehicle registrations in China

Hong Yuan, Minda Ma, Nan Zhou, Xin Ma, Yanqiao Deng, Zhili Ma

Analysis of 20 million EV registrations across Chinese cities shows efficiency gains of 31-213 MJ per 100 km alongside carbon intensities varying from 18 to 270 gCO2 per km.

arxiv:2511.20742 v4 · 2025-11-25 · physics.soc-ph

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5A3JEMPSDFIBUKKZ6IHKNYYC47}

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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.

Claims

C1strongest claim

Real-world data reveal that EVs are 30.9-212.8 megajoules per 100 km more energy efficient than internal combustion vehicles, yet their carbon intensities range from 18.2 to 270.4 gCO2/km among provinces. Scenario projections suggest that emissions will peak about 2030 at 21.1-30.9 megatonnes of CO2 and decline by 2035 under continued market transition.

C2weakest assumption

The 2035 emission projections rest on assumed rates of continued EV market transition and electrification of hybrids that are not validated against external forecasts or sensitivity tests in the provided abstract.

C3one line summary

Large-scale EV registration data shows electric vehicles use 30.9-212.8 MJ/100 km less energy than internal combustion vehicles but produce 18.2-270.4 gCO2/km depending on province, with emissions projected to peak around 2030 then fall by 2035.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:05:38.071701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8369231f219501a2959f20ea6e302e7fbdeb81ce5a2ed07263f20d1725a9f73

Aliases

arxiv: 2511.20742 · arxiv_version: 2511.20742v4 · doi: 10.48550/arxiv.2511.20742 · pith_short_12: 5A3JEMPSDFIB · pith_short_16: 5A3JEMPSDFIBUKKZ · pith_short_8: 5A3JEMPS

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/5A3JEMPSDFIBUKKZ6IHKNYYC47 \
  | 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: e8369231f219501a2959f20ea6e302e7fbdeb81ce5a2ed07263f20d1725a9f73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a8376a12c7ba703aa288f5bcd1282316826fa29e885d844a91a530266bb51d2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-11-25T18:08:51Z",
    "title_canon_sha256": "602afb97d2b63208bdd5ad12e9f30f9423a6f40350bce0e487bda5127cd041fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.20742",
    "kind": "arxiv",
    "version": 4
  }
}