Pith Number

pith:PDIYYMIE

pith:2019:PDIYYMIE5DEHFTP3MJZYBVUPM6

not attested not anchored not stored refs pending

Iodide-methylammonium interaction is responsible for ferroelectricity in CH3NH3PbI3

Frederike Lehmann, Harriott Nowell, Joachim Breternitz, Sarah A. Barnett, Susan Schorr

arxiv:1907.06510 v1 · 2019-07-15 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDIYYMIE5DEHFTP3MJZYBVUPM6}

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	2026-05-17T23:40:37.533075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d18c3104e8c872cdfb627380d68f67849ebcafb6a430b5d75bf3420fd40807

Aliases

arxiv: 1907.06510 · arxiv_version: 1907.06510v1 · doi: 10.48550/arxiv.1907.06510 · pith_short_12: PDIYYMIE5DEH · pith_short_16: PDIYYMIE5DEHFTP3 · pith_short_8: PDIYYMIE

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/PDIYYMIE5DEHFTP3MJZYBVUPM6 \
  | 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: 78d18c3104e8c872cdfb627380d68f67849ebcafb6a430b5d75bf3420fd40807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2437710a038776be4667d897db94edaad9d544c457ef8a7e2016a8b4d10a5384",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-07-15T13:58:06Z",
    "title_canon_sha256": "bede4db882c0b2f5f005022eb10ad713e9bdadd1472e0589c80981e2f3606cb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06510",
    "kind": "arxiv",
    "version": 1
  }
}