Pith Number

pith:HJWAFJQJ

pith:2021:HJWAFJQJ3JBKWZDECU3SCFBUKB

not attested not anchored not stored refs pending

Neural ranking models for document retrieval

Brian D. Davison, Jeff Heflin, Mohamed Trabelsi, Zhiyu Chen

arxiv:2102.11903 v2 · 2021-02-23 · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJWAFJQJ3JBKWZDECU3SCFBUKB}

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	2026-07-05T03:27:56.465918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a6c02a609da42ab646415372114345059caf255e0d09902810fe5557df8f192

Aliases

arxiv: 2102.11903 · arxiv_version: 2102.11903v2 · doi: 10.48550/arxiv.2102.11903 · pith_short_12: HJWAFJQJ3JBK · pith_short_16: HJWAFJQJ3JBKWZDE · pith_short_8: HJWAFJQJ

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/HJWAFJQJ3JBKWZDECU3SCFBUKB \
  | 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: 3a6c02a609da42ab646415372114345059caf255e0d09902810fe5557df8f192

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37762144128b10e3f55e70b9e7dce5dad12fad48b974039c0087c37222f5b86c",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-02-23T19:30:37Z",
    "title_canon_sha256": "000bce2c4c91cc68416cfb7b15be33c1d536208ddc99d078c2663b2e868b0466"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.11903",
    "kind": "arxiv",
    "version": 2
  }
}