Pith Number

pith:DCLU7J5P

pith:2009:DCLU7J5PYC2Z2ED4RT4UA7IO32

not attested not anchored not stored refs pending

Graphene on metals: a Van der Waals density functional study

A. K. Kelkkanen, J. J. Mortensen, J. M. Garcia-Lastra, K. S. Thygesen, K. W. Jacobsen, M. Vanin

arxiv:0912.3078 v1 · 2009-12-16 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCLU7J5PYC2Z2ED4RT4UA7IO32}

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	2026-05-18T02:10:16.710550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18974fa7afc0b59d107c8cf9407d0ede867131add5b4c3afd0ea1c4bcf6b29cd

Aliases

arxiv: 0912.3078 · arxiv_version: 0912.3078v1 · doi: 10.48550/arxiv.0912.3078 · pith_short_12: DCLU7J5PYC2Z · pith_short_16: DCLU7J5PYC2Z2ED4 · pith_short_8: DCLU7J5P

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/DCLU7J5PYC2Z2ED4RT4UA7IO32 \
  | 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: 18974fa7afc0b59d107c8cf9407d0ede867131add5b4c3afd0ea1c4bcf6b29cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "374818b0da6f3bee8782856ec169d17d8ec378c675808c95041518599fcac8bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-12-16T08:47:32Z",
    "title_canon_sha256": "e607846b69d6bd5ce883debd6bdcdfa2f661e65447e3dcd184a2542aa3c4fed2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3078",
    "kind": "arxiv",
    "version": 1
  }
}