Pith Number

pith:2MSBF74J

pith:2016:2MSBF74JBLYESFELD5UUYLHXIA

not attested not anchored not stored refs pending

Artificial Material with Negative Thermal Expansion: A Simple Geometrical Approach

Mikrajuddin Abdullah

arxiv:1601.02590 v1 · 2016-01-11 · 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{2MSBF74JBLYESFELD5UUYLHXIA}

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	2026-05-18T01:23:04.756579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d32412ff890af049148b1f694c2cf7403aad0393ab2501c515d792435e3bde22

Aliases

arxiv: 1601.02590 · arxiv_version: 1601.02590v1 · doi: 10.48550/arxiv.1601.02590 · pith_short_12: 2MSBF74JBLYE · pith_short_16: 2MSBF74JBLYESFEL · pith_short_8: 2MSBF74J

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/2MSBF74JBLYESFELD5UUYLHXIA \
  | 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: d32412ff890af049148b1f694c2cf7403aad0393ab2501c515d792435e3bde22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a01947a2d39ad5721a98925a7611f3a7c469c67f2503522e204d5e5086afe22d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2016-01-11T20:41:57Z",
    "title_canon_sha256": "d7bc21af5efb67ba8b44fd1e94bc3870382cc415d712d6b6d21b87f42997063f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02590",
    "kind": "arxiv",
    "version": 1
  }
}