Pith Number

pith:EHCEPJLY

pith:2022:EHCEPJLYGK4BEKUUJSZ7QAYUXH

not attested not anchored not stored refs pending

Understanding and Minimizing $V_{OC}$ Losses in All-Perovskite Tandem Photovoltaics

2), (2) Clarendon Laboratory, (3) Institute of Electronic Devices, (4) Young Investigator Group Perovskite Tandem Solar Cells, 5), (5) Technical University Berlin, Astronomy, computer Science), Dieter Neher (1), Emilio Gutierrez-Partida (1), Faculty IV Electrical Engineering, Felix Lang (1) ((1) Institute of Physics, Fengjiu Yang (4), Francisco Pe\~na-Camargo (1), Helmholtz-Zentrum Berlin f\"ur Materialien und Energie GmbH, Henry J. Snaith (2), Jarla Thiesbrummel (1, Jonathan Warby (1), Kai Oliver Brinkmann (3), Martin Stolterfoht (1), Steve Albrecht (4, Thomas Riedl (3), University of Oxford, University of Potsdam, University of Wuppertal, Wuppertal Center for Smart Materials & Systems

arxiv:2207.09863 v1 · 2022-07-20 · cond-mat.mtrl-sci · cond-mat.soft · physics.app-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{EHCEPJLYGK4BEKUUJSZ7QAYUXH}

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	2026-07-05T04:42:02.705721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21c447a57832b8122a944cb3f80314b9fad8cbdb134ba70acbea15045a829e71

Aliases

arxiv: 2207.09863 · arxiv_version: 2207.09863v1 · doi: 10.48550/arxiv.2207.09863 · pith_short_12: EHCEPJLYGK4B · pith_short_16: EHCEPJLYGK4BEKUU · pith_short_8: EHCEPJLY

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/EHCEPJLYGK4BEKUUJSZ7QAYUXH \
  | 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: 21c447a57832b8122a944cb3f80314b9fad8cbdb134ba70acbea15045a829e71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a03bb9c47d365c61bdac65fa5a6be9bcb4e76643814ec05d147455bef0c91cb",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2022-07-20T12:52:36Z",
    "title_canon_sha256": "25c9ac4468af88e391f495bb78cb8701943e074ebb4cdd6e483e63cd829052ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.09863",
    "kind": "arxiv",
    "version": 1
  }
}