Pith Number

pith:WQ7KFAZP

pith:2015:WQ7KFAZPQIKQ4GTWD63AHQ4WV6

not attested not anchored not stored refs pending

Low-energy tetrahedral polymorphs of carbon, silicon, and germanium

Andres Mujica, Chris J. Pickard, Richard J. Needs

arxiv:1508.02631 v1 · 2015-08-11 · cond-mat.mtrl-sci · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQ7KFAZPQIKQ4GTWD63AHQ4WV6}

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	2026-05-18T01:35:28.684518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b43ea2832f82150e1a761fb603c396afbf4a2fd37c0b1850cc2bc2548d9b2c48

Aliases

arxiv: 1508.02631 · arxiv_version: 1508.02631v1 · doi: 10.48550/arxiv.1508.02631 · pith_short_12: WQ7KFAZPQIKQ · pith_short_16: WQ7KFAZPQIKQ4GTW · pith_short_8: WQ7KFAZP

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/WQ7KFAZPQIKQ4GTWD63AHQ4WV6 \
  | 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: b43ea2832f82150e1a761fb603c396afbf4a2fd37c0b1850cc2bc2548d9b2c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "345752d8976b6dbe18cfef8e3fee16a35a051757dd4399a72ae632fa203e622f",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-08-11T15:34:10Z",
    "title_canon_sha256": "f9e44625633bb844bdf8251e4ebe0d59651c6a75f3881e3de0884f193b6d7b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02631",
    "kind": "arxiv",
    "version": 1
  }
}