Pith Number

pith:GXVK7KQL

pith:2018:GXVK7KQL7VCDBPQXWL6JILU54Z

not attested not anchored not stored refs pending

Evaluation of Information Retrieval Systems Using Structural Equation Modelling

Massimo Melucci

arxiv:1806.09317 v1 · 2018-06-25 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GXVK7KQL7VCDBPQXWL6JILU54Z}

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	2026-05-18T00:12:29.678505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35eaafaa0bfd4430be17b2fc942e9de6636b6db488d8b288582cae933c1843f3

Aliases

arxiv: 1806.09317 · arxiv_version: 1806.09317v1 · doi: 10.48550/arxiv.1806.09317 · pith_short_12: GXVK7KQL7VCD · pith_short_16: GXVK7KQL7VCDBPQX · pith_short_8: GXVK7KQL

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/GXVK7KQL7VCDBPQXWL6JILU54Z \
  | 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: 35eaafaa0bfd4430be17b2fc942e9de6636b6db488d8b288582cae933c1843f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9795dc19035ee14859d92cd3e1749165dc885f54deb0371def262b4ee612f0a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-06-25T08:05:26Z",
    "title_canon_sha256": "1839f06efc2a85c9190a3cd3eb8149a72d5457e3521869e2871e33b67d5affa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09317",
    "kind": "arxiv",
    "version": 1
  }
}