Pith Number

pith:KCPRDZIM

pith:2012:KCPRDZIM2GMF352L3PRY4MDDN5

not attested not anchored not stored refs pending

Four superhard carbon allotropes: First-principle study

Chaoyu He, C. X. Zhang, Jianxin Zhong, K. W. Zhang, L. Z. Sun, Xiangyang Peng

arxiv:1203.5879 v2 · 2012-03-27 · 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{KCPRDZIM2GMF352L3PRY4MDDN5}

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	2026-05-18T03:57:28.223491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

509f11e50cd1985df74bdbe38e30636f4c0206ae31c06ec749ed499848d002ec

Aliases

arxiv: 1203.5879 · arxiv_version: 1203.5879v2 · doi: 10.48550/arxiv.1203.5879 · pith_short_12: KCPRDZIM2GMF · pith_short_16: KCPRDZIM2GMF352L · pith_short_8: KCPRDZIM

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/KCPRDZIM2GMF352L3PRY4MDDN5 \
  | 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: 509f11e50cd1985df74bdbe38e30636f4c0206ae31c06ec749ed499848d002ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58b728878a58d8df981a463af55053890b1281c2ded31702d1f4e4be39e2972d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-03-27T06:58:04Z",
    "title_canon_sha256": "ce82f3b047a371dcf7460616dcf33d918dabcb6d61926a58a6f983ccfd25390e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5879",
    "kind": "arxiv",
    "version": 2
  }
}