Pith Number

pith:Z2QXSBA7

pith:2020:Z2QXSBA7RNHELRRSNRUIK6F7LR

not attested not anchored not stored refs pending

How to Measure the Reproducibility of System-oriented IR Experiments

Ian Soboroff, Maria Maistro, Nicola Ferro, Norbert Fuhr, Philipp Schaer, Tetsuya Sakai, Timo Breuer

arxiv:2010.13447 v1 · 2020-10-26 · 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{Z2QXSBA7RNHELRRSNRUIK6F7LR}

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	2026-07-05T01:46:06.434741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cea179041f8b4e45c6326c688578bf5c4a12972b76c7c0557a5da2a36b8f1dff

Aliases

arxiv: 2010.13447 · arxiv_version: 2010.13447v1 · doi: 10.48550/arxiv.2010.13447 · pith_short_12: Z2QXSBA7RNHE · pith_short_16: Z2QXSBA7RNHELRRS · pith_short_8: Z2QXSBA7

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/Z2QXSBA7RNHELRRSNRUIK6F7LR \
  | 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: cea179041f8b4e45c6326c688578bf5c4a12972b76c7c0557a5da2a36b8f1dff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c91cd8e2c51322a1415e281a3c792585e45c88e7e53561a31e69382eff6dbed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-10-26T09:36:15Z",
    "title_canon_sha256": "5285eb02c193f420dbaaf0d5019034ca032402a089d882d2f78f6e382ad24a79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.13447",
    "kind": "arxiv",
    "version": 1
  }
}