Pith Number

pith:WV4MN2P4

pith:2012:WV4MN2P432JAZODM52QJIWW3XK

not attested not anchored not stored refs pending

Learning the Gain Values and Discount Factors of DCG

Gui-Rong Xue, Hongyuan Zha, Ke Zhou, Yong Yu

arxiv:1212.5650 v1 · 2012-12-22 · 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{WV4MN2P432JAZODM52QJIWW3XK}

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	2026-05-18T03:37:51.857423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b578c6e9fcde920cb86ceea0945adbbaa911ded240497036002f2407b3c21466

Aliases

arxiv: 1212.5650 · arxiv_version: 1212.5650v1 · doi: 10.48550/arxiv.1212.5650 · pith_short_12: WV4MN2P432JA · pith_short_16: WV4MN2P432JAZODM · pith_short_8: WV4MN2P4

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/WV4MN2P432JAZODM52QJIWW3XK \
  | 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: b578c6e9fcde920cb86ceea0945adbbaa911ded240497036002f2407b3c21466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e73f24f47f75773856b3a9a5d3893ba51cf760d496313e5520b4cc25b6a6266",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-12-22T03:33:12Z",
    "title_canon_sha256": "9685b93f0b1e158130a5370436d880a0e87bf0d75588dc995c58538da745757f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5650",
    "kind": "arxiv",
    "version": 1
  }
}