Pith Number

pith:Y2C72LXB

pith:2019:Y2C72LXBSOXYRAPWKZJDZK7SBG

not attested not anchored not stored refs pending

ViTOR: Learning to Rank Webpages Based on Visual Features

Bram van den Akker, Ilya Markov, Maarten de Rijke

arxiv:1903.02939 v1 · 2019-03-07 · 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{Y2C72LXBSOXYRAPWKZJDZK7SBG}

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	2026-05-17T23:51:50.661756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c685fd2ee193af8881f656523cabf20995d34a93b456861e92eb1be957ba7f39

Aliases

arxiv: 1903.02939 · arxiv_version: 1903.02939v1 · doi: 10.48550/arxiv.1903.02939 · pith_short_12: Y2C72LXBSOXY · pith_short_16: Y2C72LXBSOXYRAPW · pith_short_8: Y2C72LXB

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/Y2C72LXBSOXYRAPWKZJDZK7SBG \
  | 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: c685fd2ee193af8881f656523cabf20995d34a93b456861e92eb1be957ba7f39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c2b6313f6224cb82cc358724eb068af3074001eb6569eb6c59259bf80c912c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-03-07T14:32:41Z",
    "title_canon_sha256": "ac47ec8ff59e2d87e48eb37a70f877cfb6cd37e043661c6eb8bfc8211c88eadf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02939",
    "kind": "arxiv",
    "version": 1
  }
}