Pith Number

pith:UM2SHQ7V

pith:2019:UM2SHQ7VUXCYSP2VFGJQY4IUWT

not attested not anchored not stored refs pending

Negative thermal expansion in CdSe quasi-two-dimensional nanoplatelets

Alexander I. Lebedev

arxiv:1908.04581 v1 · 2019-08-13 · cond-mat.mtrl-sci · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UM2SHQ7VUXCYSP2VFGJQY4IUWT}

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	2026-07-04T23:55:14.878539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a33523c3f5a5c5893f5529930c7114b4fc1a178196d45b0d8ade8786828bef1b

Aliases

arxiv: 1908.04581 · arxiv_version: 1908.04581v1 · doi: 10.48550/arxiv.1908.04581 · pith_short_12: UM2SHQ7VUXCY · pith_short_16: UM2SHQ7VUXCYSP2V · pith_short_8: UM2SHQ7V

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/UM2SHQ7VUXCYSP2VFGJQY4IUWT \
  | 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: a33523c3f5a5c5893f5529930c7114b4fc1a178196d45b0d8ade8786828bef1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "835701177ac27b59dc7dc108f41637800cb4d38e70f4966e96f6f3d0d3c1ee08",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-08-13T11:28:29Z",
    "title_canon_sha256": "f20287df643ecfb683d65f8dcde950d305e241d1ddb43edff5fc1389667a173a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04581",
    "kind": "arxiv",
    "version": 1
  }
}