Pith Number

pith:NPE4ILLE

pith:2009:NPE4ILLETEWQHBAK6ZM42KS2E7

not attested not anchored not stored refs pending

Quantized spin wave modes in magnetic tunnel junction nanopillars

A. Helmer, C. Chappert, J.-V. Kim, L. Lagae, S. Cornelissen, T. Devolder, W. Van Roy

arxiv:0907.3792 v2 · 2009-07-22 · cond-mat.mes-hall · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPE4ILLETEWQHBAK6ZM42KS2E7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:12:54.779065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc9c42d64992d03840af659cd2a5a27d29851c88b525eb52ffc1e2c5991d125

Aliases

arxiv: 0907.3792 · arxiv_version: 0907.3792v2 · doi: 10.48550/arxiv.0907.3792 · pith_short_12: NPE4ILLETEWQ · pith_short_16: NPE4ILLETEWQHBAK · pith_short_8: NPE4ILLE

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/NPE4ILLETEWQHBAK6ZM42KS2E7 \
  | 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: 6bc9c42d64992d03840af659cd2a5a27d29851c88b525eb52ffc1e2c5991d125

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22fdd5faf2b8beffc6ddaa6f138effe0a96b11053ebeee681d651d2450edae76",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-07-22T11:39:07Z",
    "title_canon_sha256": "2b781c816563e3ddf584098ae72381d7796e2709871f5e0885cf78e788f686bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3792",
    "kind": "arxiv",
    "version": 2
  }
}