Pith Number

pith:ZEVTPAMK

pith:2021:ZEVTPAMKXWGVRLUEV6T4U247MF

not attested not anchored not stored refs pending

Searching for Scientific Evidence in a Pandemic: An Overview of TREC-COVID

Dina Demner-Fushman, Ellen Voorhees, Ian Soboroff, Kirk Roberts, Kyle Lo, Lucy Lu Wang, Steven Bedrick, Tasmeer Alam, William R Hersh

arxiv:2104.09632 v1 · 2021-04-19 · 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{ZEVTPAMKXWGVRLUEV6T4U247MF}

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.

Cited by

2 papers in Pith

HAKARI-Bench: A Lightweight Benchmark for Comparing Retrieval Architectures and Efficiency Settings under Unified Conditions

Your UnEmbedding Matrix is Secretly a Feature Lens for Text Embeddings

Receipt and verification

First computed	2026-07-05T02:33:35.503306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c92b37818abd8d58ae84afa7ca6b9f617392c4540c7531b74ed836e49aa71221

Aliases

arxiv: 2104.09632 · arxiv_version: 2104.09632v1 · doi: 10.48550/arxiv.2104.09632 · pith_short_12: ZEVTPAMKXWGV · pith_short_16: ZEVTPAMKXWGVRLUE · pith_short_8: ZEVTPAMK

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/ZEVTPAMKXWGVRLUEV6T4U247MF \
  | 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: c92b37818abd8d58ae84afa7ca6b9f617392c4540c7531b74ed836e49aa71221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92845d0d5c0795258d8743898f71a123b7d749c77a104211a9115bcda155e0f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-04-19T20:49:45Z",
    "title_canon_sha256": "4e95a159239d7e5fd4fa0a19333bbd6d5aa9b86d1c4c522ce0e86b930efb7ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.09632",
    "kind": "arxiv",
    "version": 1
  }
}