Pith Number

pith:H4QB2RTH

pith:2020:H4QB2RTHZUBXHTI6FJ7YT2CTEE

not attested not anchored not stored refs pending

The HEV Ventilator Proposal

A. Abed Abud, A. Bay, A. Fern\'andez Prieto, A. Jevtic, C. Bertella, D. Hutchcroft, D. Murray, E. Lemos Cid, F. Sanders, I. Nasteva, J. Buytaert, J. Lindner, K. Akiba, K. Hennessy, K. Kapusniak, M. Milovanovic, N. Dikic, N. Neufeld, O. Augusto De Aguiar Francisco, P. Collins, P. Durante, P. Svihra, R. Dumps, R. Guida, R. Schwemmer, S. Ilic, T. Bowcock, V. Coco, V. Franco Lima, W. Byczynski, X. Pons

arxiv:2004.00534 v2 · 2020-04-01 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4QB2RTHZUBXHTI6FJ7YT2CTEE}

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	2026-07-05T00:52:19.167789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f201d4667cd0373cd1e2a7f89e853210be7d72883d2eecc54b325e43d1559a4

Aliases

arxiv: 2004.00534 · arxiv_version: 2004.00534v2 · doi: 10.48550/arxiv.2004.00534 · pith_short_12: H4QB2RTHZUBX · pith_short_16: H4QB2RTHZUBXHTI6 · pith_short_8: H4QB2RTH

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/H4QB2RTHZUBXHTI6FJ7YT2CTEE \
  | 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: 3f201d4667cd0373cd1e2a7f89e853210be7d72883d2eecc54b325e43d1559a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee76e777aaf1d8d0472cce0b573df9948fa37cbd59feda9cc124878936b73092",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2020-04-01T15:59:18Z",
    "title_canon_sha256": "e7ebf5950be8f866ea9ace0790dc57442c88a1ded62b3d00d88c5c693b8246e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.00534",
    "kind": "arxiv",
    "version": 2
  }
}