Pith Number

pith:HZV4I7EB

pith:2018:HZV4I7EBPDF7HAPJGQE6ZPTH2G

not attested not anchored not stored refs pending

Pytrec_eval: An Extremely Fast Python Interface to trec_eval

Christophe Van Gysel, Maarten de Rijke

arxiv:1805.01597 v2 · 2018-05-04 · 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{HZV4I7EBPDF7HAPJGQE6ZPTH2G}

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	2026-05-18T00:14:13.659684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e6bc47c8178cbf381e93409ecbe67d1bc7267ca9e0527483938a9ddf48cdd55

Aliases

arxiv: 1805.01597 · arxiv_version: 1805.01597v2 · doi: 10.48550/arxiv.1805.01597 · pith_short_12: HZV4I7EBPDF7 · pith_short_16: HZV4I7EBPDF7HAPJ · pith_short_8: HZV4I7EB

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/HZV4I7EBPDF7HAPJGQE6ZPTH2G \
  | 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: 3e6bc47c8178cbf381e93409ecbe67d1bc7267ca9e0527483938a9ddf48cdd55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b681b7f12038461811a5185d07fa4ec0b9d7e1f4984b144f4b9efedac633c039",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-05-04T03:37:03Z",
    "title_canon_sha256": "74118904b7a4e0c8183c33a8b6a741997c00deae8030b03575f6cbd058dbd4cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01597",
    "kind": "arxiv",
    "version": 2
  }
}