Pith Number

pith:4G57M64I

pith:2009:4G57M64IHOLJIHETBYFDOGX27C

not attested not anchored not stored refs pending

Ultra-dense phosphorus in germanium delta-doped layers

G. Capellini, G. Scappucci, M. Y. Simmons, W. C. T. Lee

arxiv:0912.0751 v1 · 2009-12-03 · cond-mat.mes-hall · 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{4G57M64IHOLJIHETBYFDOGX27C}

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	2026-05-18T03:50:22.183015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1bbf67b883b96941c930e0a371afaf8834bbc9d6d2034041d5e537a213ff1ba

Aliases

arxiv: 0912.0751 · arxiv_version: 0912.0751v1 · doi: 10.48550/arxiv.0912.0751 · pith_short_12: 4G57M64IHOLJ · pith_short_16: 4G57M64IHOLJIHET · pith_short_8: 4G57M64I

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/4G57M64IHOLJIHETBYFDOGX27C \
  | 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: e1bbf67b883b96941c930e0a371afaf8834bbc9d6d2034041d5e537a213ff1ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd728b73d9828bf63e52c7eb8eba3fa27e02535813ec4a2fe60aa319933a6bb5",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-12-03T23:03:10Z",
    "title_canon_sha256": "fdd82dcc8c534970d0e6503810b7e3fecabf30dd7808810b8de29a28bb8c3f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0751",
    "kind": "arxiv",
    "version": 1
  }
}