Pith Number

pith:3QED3XER

pith:2019:3QED3XER6KJQQ43NFO7VWMPHVO

not attested not anchored not stored refs pending

Combining Q&A Pair Quality and Question Relevance Features on Community-based Question Retrieval

Dong Li, Lin Li

arxiv:1907.02031 v1 · 2019-07-03 · 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{3QED3XER6KJQQ43NFO7VWMPHVO}

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	2026-05-17T23:41:31.845372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc083ddc91f29308736d2bbf5b31e7ab917663a6540ccdf2675dc4c8abc9fd21

Aliases

arxiv: 1907.02031 · arxiv_version: 1907.02031v1 · doi: 10.48550/arxiv.1907.02031 · pith_short_12: 3QED3XER6KJQ · pith_short_16: 3QED3XER6KJQQ43N · pith_short_8: 3QED3XER

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/3QED3XER6KJQQ43NFO7VWMPHVO \
  | 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: dc083ddc91f29308736d2bbf5b31e7ab917663a6540ccdf2675dc4c8abc9fd21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b88de60cb78e2832a2f2cf2eee72179f074a995f3c4a565fdd5886d03dc537d8",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-07-03T16:53:28Z",
    "title_canon_sha256": "3f7e35f333f2654109ee24f4766f6c620292ab425549cdeda62d9c89a349d9cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02031",
    "kind": "arxiv",
    "version": 1
  }
}