Pith Number

pith:4YY5ZULT

pith:2021:4YY5ZULTM44CLZABASMEJGDI7W

not attested not anchored not stored refs pending

Unsupervised Corpus Aware Language Model Pre-training for Dense Passage Retrieval

Jamie Callan, Luyu Gao

arxiv:2108.05540 v1 · 2021-08-12 · cs.IR · 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{4YY5ZULTM44CLZABASMEJGDI7W}

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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.

Cited by

4 papers in Pith

Atlas: Few-shot Learning with Retrieval Augmented Language Models

Unsupervised Dense Information Retrieval with Contrastive Learning

UnIte: Uncertainty-based Iterative Document Sampling for Domain Adaptation in Information Retrieval

Data, Not Model: Explaining Bias toward LLM Texts in Neural Retrievers

Receipt and verification

First computed	2026-07-05T03:05:15.342992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e631dcd173673825e4010498449868fdaf4a49cb218d5a23d4c4810a2bacd0a4

Aliases

arxiv: 2108.05540 · arxiv_version: 2108.05540v1 · doi: 10.48550/arxiv.2108.05540 · pith_short_12: 4YY5ZULTM44C · pith_short_16: 4YY5ZULTM44CLZAB · pith_short_8: 4YY5ZULT

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/4YY5ZULTM44CLZABASMEJGDI7W \
  | 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: e631dcd173673825e4010498449868fdaf4a49cb218d5a23d4c4810a2bacd0a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94ed386332dfb987abe69306f6642ab56141481d029ab8b5e8ef6d2a41b8147a",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-08-12T05:20:27Z",
    "title_canon_sha256": "348d7b8080a8e7fc54323c1041c844f0d2486b54f9279a89004c1dde19e0c8e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.05540",
    "kind": "arxiv",
    "version": 1
  }
}