Pith Number

pith:JBYFUQLY

pith:2014:JBYFUQLYBZ7VIQZH7CMIIBSSPO

not attested not anchored not stored refs pending

Framework Flexibility and the Negative Thermal Expansion Mechanism of Copper(I) Oxide, Cu2O

Andrew L. Goodwin, Bj\"orn Winkler, Dan J. Wilson, Keith Refson, Leila H. N. Rimmer, Martin T. Dove

arxiv:1402.1026 v1 · 2014-02-05 · 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{JBYFUQLYBZ7VIQZH7CMIIBSSPO}

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	2026-05-18T02:48:36.941773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48705a41780e7f544327f8988406527b8ceba23571d7b922002bc78d1f43e4d3

Aliases

arxiv: 1402.1026 · arxiv_version: 1402.1026v1 · doi: 10.48550/arxiv.1402.1026 · pith_short_12: JBYFUQLYBZ7V · pith_short_16: JBYFUQLYBZ7VIQZH · pith_short_8: JBYFUQLY

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/JBYFUQLYBZ7VIQZH7CMIIBSSPO \
  | 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: 48705a41780e7f544327f8988406527b8ceba23571d7b922002bc78d1f43e4d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f17fc8f522e7cfebd57dd1fabc32f348468ef198bba572dc18ff11780f742e10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2014-02-05T12:47:09Z",
    "title_canon_sha256": "17b3c3d02fd8bec0fb5d8056ed9f52e3adb042bcb8602ed6eb2e47fc583bc67c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1026",
    "kind": "arxiv",
    "version": 1
  }
}