Pith Number

pith:TVUDTKJD

pith:2022:TVUDTKJD2IUK3XGB6FNWINHDKD

not attested not anchored not stored refs pending

A Contrastive Pre-training Approach to Learn Discriminative Autoencoder for Dense Retrieval

Jiafeng Guo, Ruqing Zhang, Xinyu Ma, Xueqi Cheng, Yixing Fan

arxiv:2208.09846 v1 · 2022-08-21 · 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{TVUDTKJD2IUK3XGB6FNWINHDKD}

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	2026-07-05T04:50:22.717706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d6839a923d228addcc1f15b6434e350e94273b523c0e064579cf2583384118f

Aliases

arxiv: 2208.09846 · arxiv_version: 2208.09846v1 · doi: 10.48550/arxiv.2208.09846 · pith_short_12: TVUDTKJD2IUK · pith_short_16: TVUDTKJD2IUK3XGB · pith_short_8: TVUDTKJD

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/TVUDTKJD2IUK3XGB6FNWINHDKD \
  | 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: 9d6839a923d228addcc1f15b6434e350e94273b523c0e064579cf2583384118f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cc745bb36133c7f96adc028bcb63cbfb4809633e0f47b6707a90357b0ce8644",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-08-21T08:46:18Z",
    "title_canon_sha256": "e4ed56f8f45f581b5a81a85d37fedbe75c59109e0a7dcee70e6da9b247bef390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.09846",
    "kind": "arxiv",
    "version": 1
  }
}