Pith Number

pith:XIR4B2Z6

pith:2017:XIR4B2Z65IDYYOWKT63NBRZ4YN

not attested not anchored not stored refs pending

Pyndri: a Python Interface to the Indri Search Engine

Christophe Van Gysel, Evangelos Kanoulas, Maarten de Rijke

arxiv:1701.00749 v1 · 2017-01-03 · cs.IR · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XIR4B2Z65IDYYOWKT63NBRZ4YN}

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	2026-05-18T00:53:28.301873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba23c0eb3eea078c3aca9fb6d0c73cc34403f0b8e0358e05a7ab0a4be5fd9d6f

Aliases

arxiv: 1701.00749 · arxiv_version: 1701.00749v1 · doi: 10.48550/arxiv.1701.00749 · pith_short_12: XIR4B2Z65IDY · pith_short_16: XIR4B2Z65IDYYOWK · pith_short_8: XIR4B2Z6

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/XIR4B2Z65IDYYOWKT63NBRZ4YN \
  | 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: ba23c0eb3eea078c3aca9fb6d0c73cc34403f0b8e0358e05a7ab0a4be5fd9d6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "009075c789aa5a03e5f3155187090258d12c5a1aa9998c397b25047b496562cf",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-01-03T17:17:34Z",
    "title_canon_sha256": "93a724b06382d28ec8ad54f74d4eebefcffb2e7f7c829dac0ab5837e1144a161"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00749",
    "kind": "arxiv",
    "version": 1
  }
}