Pith Number

pith:LD6LFVW6

pith:2015:LD6LFVW6N5WDRXJO7I6WHX2Z7E

not attested not anchored not stored refs pending

Ultimate Limit of Biaxial Tensile Strain and N-Type Doping for Realizing an Efficient Low-Threshold Ge Laser

Birendra (Raj) Dutt, David S. Sukhdeo, Donguk Nam, Krishna C. Saraswat, Shashank Gupta

arxiv:1507.00632 v1 · 2015-07-02 · 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{LD6LFVW6N5WDRXJO7I6WHX2Z7E}

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	2026-05-18T01:20:36.330227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58fcb2d6de6f6c38dd2efa3d63df59f90d658b25ef70f190af809400ecedc22b

Aliases

arxiv: 1507.00632 · arxiv_version: 1507.00632v1 · doi: 10.48550/arxiv.1507.00632 · pith_short_12: LD6LFVW6N5WD · pith_short_16: LD6LFVW6N5WDRXJO · pith_short_8: LD6LFVW6

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/LD6LFVW6N5WDRXJO7I6WHX2Z7E \
  | 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: 58fcb2d6de6f6c38dd2efa3d63df59f90d658b25ef70f190af809400ecedc22b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9a2c5cd86abfaf76f61105c1f4729f90f385d5ba36573c117ed7e315123cb2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-07-02T15:41:41Z",
    "title_canon_sha256": "5a1df5b6cc7c552e3ae659d52bcc6b41e171398b4a2c7299659ee128ed7559a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00632",
    "kind": "arxiv",
    "version": 1
  }
}