Pith Number

pith:IOQGDQYI

pith:2020:IOQGDQYI4GIXQROQ574IDABPDT

not attested not anchored not stored refs pending

Research Progress of News Recommendation Methods

Jing Qin

arxiv:2012.02360 v2 · 2020-12-04 · cs.IR · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IOQGDQYI4GIXQROQ574IDABPDT}

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	2026-07-05T02:20:59.577729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43a061c308e1917845d0eff881802f1ccad3fee79d34eaa3998a8eb044b5b6a7

Aliases

arxiv: 2012.02360 · arxiv_version: 2012.02360v2 · doi: 10.48550/arxiv.2012.02360 · pith_short_12: IOQGDQYI4GIX · pith_short_16: IOQGDQYI4GIXQROQ · pith_short_8: IOQGDQYI

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/IOQGDQYI4GIXQROQ574IDABPDT \
  | 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: 43a061c308e1917845d0eff881802f1ccad3fee79d34eaa3998a8eb044b5b6a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b4e25c9f50d0572ede2efe8a77d411c1b299fa673038c02b9ebe4d1079fad22",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-12-04T01:47:24Z",
    "title_canon_sha256": "78743053a34a623bdbc33e7080f8467f7fc0d06a7745ed4aea47522cb87a60bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02360",
    "kind": "arxiv",
    "version": 2
  }
}