Pith Number

pith:JYFUD4WS

pith:2013:JYFUD4WSN6MM5J3DQUHVGBZVWL

not attested not anchored not stored refs pending

Estimation of firm-level productivity changes in the Indian power sector: Disentangling unobserved heterogeneity by a transformed fixed-effect stochastic frontier model

Anish Sugathan, Deepak K. Sinha, Deepak Malghan, S. Chandrashekar

arxiv:1301.2654 v1 · 2013-01-12 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JYFUD4WSN6MM5J3DQUHVGBZVWL}

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	2026-05-18T03:36:35.643957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e0b41f2d26f98cea763850f530735b2fba0fbdf819a80c8b21d099ef5bdc6ee

Aliases

arxiv: 1301.2654 · arxiv_version: 1301.2654v1 · doi: 10.48550/arxiv.1301.2654 · pith_short_12: JYFUD4WSN6MM · pith_short_16: JYFUD4WSN6MM5J3D · pith_short_8: JYFUD4WS

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/JYFUD4WSN6MM5J3DQUHVGBZVWL \
  | 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: 4e0b41f2d26f98cea763850f530735b2fba0fbdf819a80c8b21d099ef5bdc6ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0458ab916b57ea800351f4e5036001d568bd1dd0eeca20979db9d8af6015d489",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2013-01-12T07:41:25Z",
    "title_canon_sha256": "559c77123f0e00e3c1d3277112bf28d109a30fa12681b8a2486f5accd94dfa5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2654",
    "kind": "arxiv",
    "version": 1
  }
}