Pith Number

pith:2BUUA6H2

pith:2013:2BUUA6H2256PFOK5TCHDPCE4SK

not attested not anchored not stored refs pending

Negative Thermal Expansion in cubic ZrW2O8: Role of Phonons in Entire Brillouin Zone From ab-inito Calculations

M. K. Gupta, R. Mittal, S. L. Chaplot

arxiv:1304.2921 v1 · 2013-04-10 · 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{2BUUA6H2256PFOK5TCHDPCE4SK}

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	2026-05-18T01:50:40.502546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0694078fad77cf2b95d988e37889c928e18311954d2120ebbf5e75af6e27418

Aliases

arxiv: 1304.2921 · arxiv_version: 1304.2921v1 · doi: 10.48550/arxiv.1304.2921 · pith_short_12: 2BUUA6H2256P · pith_short_16: 2BUUA6H2256PFOK5 · pith_short_8: 2BUUA6H2

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/2BUUA6H2256PFOK5TCHDPCE4SK \
  | 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: d0694078fad77cf2b95d988e37889c928e18311954d2120ebbf5e75af6e27418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad2c217a4e0c2ffd46690ad3a0ecd934d06b769dd36a10e759f2b801ca484e34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2013-04-10T12:11:17Z",
    "title_canon_sha256": "01a8a8ae4a399a5ed7646a88753c376de96f6d65f15606b777e483cd2ed4a6b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2921",
    "kind": "arxiv",
    "version": 1
  }
}