Pith Number

pith:UM7OZ5YX

pith:2013:UM7OZ5YX74EWM6VAFYQXUS3ZYR

not attested not anchored not stored refs pending

Spasers, VCSELs, and Surface plasmon emitting diodes (SPED): their unique features and figures of merit

Greg Sun, Jacob B Khurgin

arxiv:1309.1885 v1 · 2013-09-07 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UM7OZ5YX74EWM6VAFYQXUS3ZYR}

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	2026-05-18T03:13:57.178951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a33eecf717ff09667aa02e217a4b79c45d946bf4b3a0b81003997bd041c4dfca

Aliases

arxiv: 1309.1885 · arxiv_version: 1309.1885v1 · doi: 10.48550/arxiv.1309.1885 · pith_short_12: UM7OZ5YX74EW · pith_short_16: UM7OZ5YX74EWM6VA · pith_short_8: UM7OZ5YX

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/UM7OZ5YX74EWM6VAFYQXUS3ZYR \
  | 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: a33eecf717ff09667aa02e217a4b79c45d946bf4b3a0b81003997bd041c4dfca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f033e6dec323dae77724a11008b842662998ddad2b981bc50eb98f0fe55d044",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-09-07T17:20:18Z",
    "title_canon_sha256": "1202b22f1e1c0a2321c7040c7ba047f4cd27fdbe7457d6cccc90fb2fc7e51dda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1885",
    "kind": "arxiv",
    "version": 1
  }
}