Pith Number

pith:ZB7BT4UA

pith:2014:ZB7BT4UAUMNQ2KVNI3SK3QLAAP

not attested not anchored not stored refs pending

Using Topological Data Analysis for diagnosis pulmonary embolism

Aldo Salvi, Cinzia Nitti, Damir Herman, Emanuela Merelli, Lorenzo Falsetti, Matteo Rucco, Tanya Petrossian

arxiv:1409.5020 v1 · 2014-09-17 · physics.med-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZB7BT4UAUMNQ2KVNI3SK3QLAAP}

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	2026-05-18T02:42:38.045964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c87e19f280a31b0d2aad46e4adc16003e3727b134c8e74f2bf2efb2bf5872e29

Aliases

arxiv: 1409.5020 · arxiv_version: 1409.5020v1 · doi: 10.48550/arxiv.1409.5020 · pith_short_12: ZB7BT4UAUMNQ · pith_short_16: ZB7BT4UAUMNQ2KVN · pith_short_8: ZB7BT4UA

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/ZB7BT4UAUMNQ2KVNI3SK3QLAAP \
  | 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: c87e19f280a31b0d2aad46e4adc16003e3727b134c8e74f2bf2efb2bf5872e29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1900edad0d5a69e9eb8f1347d3e9f9f5adcb98db300787dae285344fa5f9215f",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2014-09-17T15:08:15Z",
    "title_canon_sha256": "86d27b5d02d7bcf8cf32290a8b2e7ceca8b16f76d8eaf6e8a6ad4d6b014ffa6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.5020",
    "kind": "arxiv",
    "version": 1
  }
}