Pith Number

pith:5UWMDRUF

pith:2015:5UWMDRUFK7KCH5CKRNPBUL5EZK

not attested not anchored not stored refs pending

Identification of reference set and measurement of returns to scale in DEA: A least distance based framework

Mahmood Mehdiloozad, Mohammad Bagher Ahmadi

arxiv:1503.09095 v1 · 2015-03-31 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UWMDRUFK7KCH5CKRNPBUL5EZK}

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	2026-05-18T02:19:51.418656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed2cc1c68557d423f44a8b5e1a2fa4cab6af16ca8e7265dd9fb9d5a563a301a2

Aliases

arxiv: 1503.09095 · arxiv_version: 1503.09095v1 · doi: 10.48550/arxiv.1503.09095 · pith_short_12: 5UWMDRUFK7KC · pith_short_16: 5UWMDRUFK7KCH5CK · pith_short_8: 5UWMDRUF

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/5UWMDRUFK7KCH5CKRNPBUL5EZK \
  | 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: ed2cc1c68557d423f44a8b5e1a2fa4cab6af16ca8e7265dd9fb9d5a563a301a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12da36e207339dc5ecf33b89fd5b404c4aaf1b94ed0a8be38a6690a30f3f418a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-03-31T15:49:10Z",
    "title_canon_sha256": "e84b2847a09cd111d788c0331cb3767853468b9ef47b0ef55821ca619d5f9492"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.09095",
    "kind": "arxiv",
    "version": 1
  }
}