Pith Number

pith:SIRUS5VV

pith:2009:SIRUS5VVRRIP2UKCZEWDDH6FAD

not attested not anchored not stored refs pending

Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils

Aruna Velamakanni, Dongxing Yang, Emanuel Tutuc, Inhwa Jung, Jinho An, Junghyo Nah, Luigi Colombo, Richard Piner, Rodney S. Ruoff, Sanjay K. Banerjee, Seyoung Kim, Weiwei Cai, Xuesong Li

arxiv:0905.1712 v2 · 2009-05-11 · 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{SIRUS5VVRRIP2UKCZEWDDH6FAD}

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	2026-05-18T02:13:45.758472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92234976b58c50fd5142c92c319fc500fcd8b31098a19fd5e553f3e43e3320f6

Aliases

arxiv: 0905.1712 · arxiv_version: 0905.1712v2 · doi: 10.48550/arxiv.0905.1712 · pith_short_12: SIRUS5VVRRIP · pith_short_16: SIRUS5VVRRIP2UKC · pith_short_8: SIRUS5VV

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/SIRUS5VVRRIP2UKCZEWDDH6FAD \
  | 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: 92234976b58c50fd5142c92c319fc500fcd8b31098a19fd5e553f3e43e3320f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ca3c97be99c888bc9fb5af66a27fb19773875ab148d75754efcc61e7811e714",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-05-11T20:47:15Z",
    "title_canon_sha256": "e1abface313f702325c8966422cf4e54cbfad0ed5d53c9960d7ab086ddcfddd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1712",
    "kind": "arxiv",
    "version": 2
  }
}