Pith Number

pith:M4B4JN23

pith:2018:M4B4JN236VOPWP2AOI4O7XBC3U

not attested not anchored not stored refs pending

Negative Hydration Expansion in ZrW2O8: Microscopic Mechanism, Spaghetti Dynamics, and Negative Thermal Expansion

Andrew L. Goodwin, Fabien Trousselet, Fran\c{c}ois-Xavier Coudert, Mia Baise, Nicholas P. Funnell, Phillip M. Maffettone

arxiv:1804.04906 v1 · 2018-04-13 · 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{M4B4JN236VOPWP2AOI4O7XBC3U}

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	2026-05-18T00:11:34.516620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6703c4b75bf55cfb3f407238efdc22dd19534bcfa5e4ffb2f967a622dd8e64fc

Aliases

arxiv: 1804.04906 · arxiv_version: 1804.04906v1 · doi: 10.48550/arxiv.1804.04906 · pith_short_12: M4B4JN236VOP · pith_short_16: M4B4JN236VOPWP2A · pith_short_8: M4B4JN23

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/M4B4JN236VOPWP2AOI4O7XBC3U \
  | 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: 6703c4b75bf55cfb3f407238efdc22dd19534bcfa5e4ffb2f967a622dd8e64fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12ad65b16ae94565130a1c88351837403c15567ade359ecf1e25528394739752",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2018-04-13T12:07:57Z",
    "title_canon_sha256": "e6efd91643d068c4b5e2e21add032e5319127856accca0ac5bc3715f55a12766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04906",
    "kind": "arxiv",
    "version": 1
  }
}