Pith Number

pith:EK7C3L2Z

pith:2012:EK7C3L2ZNMOETM2C2Q3ZPPMPMX

not attested not anchored not stored refs pending

Production, Processing and Placement of Graphene and Two Dimensional Crystals

A. C. Ferrari, A. Lombardo, F. Bonaccorso, L. Colombo, T. Hasan, Z. Sun

arxiv:1212.3319 v1 · 2012-12-13 · cond-mat.mtrl-sci · 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{EK7C3L2ZNMOETM2C2Q3ZPPMPMX}

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	2026-05-18T03:36:15.666458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22be2daf596b1c49b342d43797bd8f65cad3e166aae55f3aa806f965b9da7626

Aliases

arxiv: 1212.3319 · arxiv_version: 1212.3319v1 · doi: 10.48550/arxiv.1212.3319 · pith_short_12: EK7C3L2ZNMOE · pith_short_16: EK7C3L2ZNMOETM2C · pith_short_8: EK7C3L2Z

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/EK7C3L2ZNMOETM2C2Q3ZPPMPMX \
  | 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: 22be2daf596b1c49b342d43797bd8f65cad3e166aae55f3aa806f965b9da7626

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6baddf312fe5853d17875e9565ad3e8a22e4e79922a5c0574b0c04a11f2b176",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-12-13T20:53:48Z",
    "title_canon_sha256": "35a54048b910df403add4a3bbbd04c5f680cd923bb545b64bfbce3d809decda4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3319",
    "kind": "arxiv",
    "version": 1
  }
}