Pith Number

pith:APSUV62Q

pith:2018:APSUV62QGYO67YMAQXXNSWJSWE

not attested not anchored not stored refs pending

Approximating Categorical Similarity in Sponsored Search Relevance

Hiba Ahsan, Rahul Agrawal

arxiv:1812.00158 v1 · 2018-12-01 · 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{APSUV62QGYO67YMAQXXNSWJSWE}

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	2026-05-17T23:59:27.088709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e

Aliases

arxiv: 1812.00158 · arxiv_version: 1812.00158v1 · doi: 10.48550/arxiv.1812.00158 · pith_short_12: APSUV62QGYO6 · pith_short_16: APSUV62QGYO67YMA · pith_short_8: APSUV62Q

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/APSUV62QGYO67YMAQXXNSWJSWE \
  | 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: 03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d41b8a4f5e5b0822601816bf32bf66112c517377c3bc72cb01b14f8d7f11f321",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-12-01T06:26:05Z",
    "title_canon_sha256": "a677342a214c1e5db73d2d8e1e24136319695cdaf534e291283f711a61587e23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.00158",
    "kind": "arxiv",
    "version": 1
  }
}