Pith Number

pith:H4HDJHCD

pith:2015:H4HDJHCDAU3DTVS7GZMWU37Y6C

not attested not anchored not stored refs pending

Exotic stable calcium carbides: theory and experiment

Artem R. Oganov, Huiyang Gou, Jesse S. Smith, Sheng-Nan Wang, Timothy A. Strobel, Yan-Ling Li

arxiv:1502.06530 v3 · 2015-02-23 · 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{H4HDJHCDAU3DTVS7GZMWU37Y6C}

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	2026-05-18T02:12:10.786452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f0e349c43053639d65f36596a6ff8f0ae70a14af64261a66672a7422ac33e93

Aliases

arxiv: 1502.06530 · arxiv_version: 1502.06530v3 · doi: 10.48550/arxiv.1502.06530 · pith_short_12: H4HDJHCDAU3D · pith_short_16: H4HDJHCDAU3DTVS7 · pith_short_8: H4HDJHCD

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/H4HDJHCDAU3DTVS7GZMWU37Y6C \
  | 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: 3f0e349c43053639d65f36596a6ff8f0ae70a14af64261a66672a7422ac33e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0db93f705380eb7cda949e6ba47325ccd9b76d4cc7090e15919450d6728b316c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-02-23T18:02:39Z",
    "title_canon_sha256": "c5f4c37306c34376bf1b0a26b74cf7c42e095fce454ae98b6f678a71bd59433a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06530",
    "kind": "arxiv",
    "version": 3
  }
}