Pith Number

pith:2SM2WSTT

pith:2020:2SM2WSTTYLYYX574EDR3EZ6RKZ

not attested not anchored not stored refs pending

Quick-start guide for first-principles modelling of point defects in crystalline materials

Aron Walsh, Ji-Sang Park, Lucy D. Whalley, Samantha N. Hood, Sunghyun Kim

arxiv:2005.01941 v4 · 2020-05-05 · cond-mat.mtrl-sci · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SM2WSTTYLYYX574EDR3EZ6RKZ}

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	2026-07-05T01:10:37.342184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d499ab4a73c2f18bf7fc20e3b267d156762af20f1ea6566b3c12af83ef7a2d94

Aliases

arxiv: 2005.01941 · arxiv_version: 2005.01941v4 · doi: 10.48550/arxiv.2005.01941 · pith_short_12: 2SM2WSTTYLYY · pith_short_16: 2SM2WSTTYLYYX574 · pith_short_8: 2SM2WSTT

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/2SM2WSTTYLYYX574EDR3EZ6RKZ \
  | 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: d499ab4a73c2f18bf7fc20e3b267d156762af20f1ea6566b3c12af83ef7a2d94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "841da66c8b3ff43cec7d0433259ae4bc6ab2b8af42d719c4ff7f2444b8138b7b",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2020-05-05T04:30:20Z",
    "title_canon_sha256": "20223859220900b11d97a6aeadc855d0fdfdfdac3b5f25a85bce4df4212034f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01941",
    "kind": "arxiv",
    "version": 4
  }
}