Pith Number

pith:HQQPEY5C

pith:2009:HQQPEY5CDMWU6YOIVFXEXB7HKC

not attested not anchored not stored refs pending

Polarization properties in the transition from below to above lasing threshold in broad-area vertical-cavity surface-emitting lasers

I. V. Babushkin, K. F. Huang, M. Schulz-Ruhtenberg, N. A. Loiko, T. Ackemann

arxiv:0909.3812 v1 · 2009-09-21 · nlin.PS · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQQPEY5CDMWU6YOIVFXEXB7HKC}

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	2026-05-18T03:23:57.647079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c20f263a21b2d4f61c8a96e4b87e750b6d23e28804a634c601382aefa1e8ff1

Aliases

arxiv: 0909.3812 · arxiv_version: 0909.3812v1 · doi: 10.48550/arxiv.0909.3812 · pith_short_12: HQQPEY5CDMWU · pith_short_16: HQQPEY5CDMWU6YOI · pith_short_8: HQQPEY5C

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/HQQPEY5CDMWU6YOIVFXEXB7HKC \
  | 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: 3c20f263a21b2d4f61c8a96e4b87e750b6d23e28804a634c601382aefa1e8ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b70fba9cc5adca72a6f45e4821ee6b9324218bc4d57037c5ee18a7a9d425a44",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2009-09-21T16:37:44Z",
    "title_canon_sha256": "62200d61182d1861f0819ed9782b3d5b738f651ea8ff238a9c91a4bc05674f65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3812",
    "kind": "arxiv",
    "version": 1
  }
}