Pith Number

pith:QRBB7PXU

pith:2020:QRBB7PXUQEDXNQ7M5IIC2RFBZD

not attested not anchored not stored refs pending

Choppy: Cut Transformer For Ranked List Truncation

Andrew Tomkins, Che Zheng, Dara Bahri, Donald Metzler, Yi Tay

arxiv:2004.13012 v1 · 2020-04-26 · cs.IR · cs.CL · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRBB7PXUQEDXNQ7M5IIC2RFBZD}

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	2026-07-05T00:58:54.758227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84421fbef4810776c3ecea102d44a1c8ff266bd103ed707fa39207ae383a2153

Aliases

arxiv: 2004.13012 · arxiv_version: 2004.13012v1 · doi: 10.48550/arxiv.2004.13012 · pith_short_12: QRBB7PXUQEDX · pith_short_16: QRBB7PXUQEDXNQ7M · pith_short_8: QRBB7PXU

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/QRBB7PXUQEDXNQ7M5IIC2RFBZD \
  | 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: 84421fbef4810776c3ecea102d44a1c8ff266bd103ed707fa39207ae383a2153

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d883ab488f6fb0f62c5026984eed2b090f9cb5ba1497a0b30d276951c3f60ee4",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-04-26T00:52:49Z",
    "title_canon_sha256": "a03e393e1616169225784756d14f30f2ed717911efb584ff43ce507c5f2f9212"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13012",
    "kind": "arxiv",
    "version": 1
  }
}