Pith Number

pith:SIWYAOQX

pith:2019:SIWYAOQXK76VXE6KMU34RJNNGP

not attested not anchored not stored refs pending

Decline of COPD exacerbations in clinical trials over two decades -- a systematic review and meta-regression

Christian R\"over, Henrik Watz, Judith Heinz, Sebastian Straube, Stefan Andreas, Tim Friede

arxiv:1908.06340 v1 · 2019-08-17 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIWYAOQXK76VXE6KMU34RJNNGP}

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	2026-07-04T23:58:14.767629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

922d803a1757fd5b93ca6537c8a5ad33eebfb46da86f8ff20ec7dc2d9aeb80bf

Aliases

arxiv: 1908.06340 · arxiv_version: 1908.06340v1 · doi: 10.48550/arxiv.1908.06340 · pith_short_12: SIWYAOQXK76V · pith_short_16: SIWYAOQXK76VXE6K · pith_short_8: SIWYAOQX

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/SIWYAOQXK76VXE6KMU34RJNNGP \
  | 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: 922d803a1757fd5b93ca6537c8a5ad33eebfb46da86f8ff20ec7dc2d9aeb80bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e586c22f34d067f90685832860b09d42c5720d60044aaa3fb86e4104f2a3e35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2019-08-17T20:32:53Z",
    "title_canon_sha256": "a47ef0b142af75af0f07f1f077c86b96e7e922f2a9f072f526454e867cf49352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06340",
    "kind": "arxiv",
    "version": 1
  }
}