Pith Number

pith:UZUFUF2X

pith:2009:UZUFUF2XGU4DHALKCTUZNHC2AA

not attested not anchored not stored refs pending

Evolution of graphene growth on Cu and Ni studied by carbon isotope labeling

Luigi Colombo, Rodney S. Ruoff, Weiwei Cai, Xuesong Li

arxiv:0907.1859 v1 · 2009-07-10 · 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{UZUFUF2XGU4DHALKCTUZNHC2AA}

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	2026-05-18T02:13:03.927686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6685a1757353833816a14e9969c5a000d3f71567a08395dfde7ad7ae3b7ba23

Aliases

arxiv: 0907.1859 · arxiv_version: 0907.1859v1 · doi: 10.48550/arxiv.0907.1859 · pith_short_12: UZUFUF2XGU4D · pith_short_16: UZUFUF2XGU4DHALK · pith_short_8: UZUFUF2X

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/UZUFUF2XGU4DHALKCTUZNHC2AA \
  | 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: a6685a1757353833816a14e9969c5a000d3f71567a08395dfde7ad7ae3b7ba23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e404dd128979c89e49d8bbe813a9c1b6c734a70f4180c532591aa050b37d4e40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-07-10T16:09:03Z",
    "title_canon_sha256": "16691efb4f511bcb24ab4e1e75c5a9ef12b1a1865765d91d130112fe0b8f4502"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1859",
    "kind": "arxiv",
    "version": 1
  }
}