Pith Number

pith:URDIRBB7

pith:2021:URDIRBB73HKAY5PVU6RYNC6MZD

not attested not anchored not stored refs pending

Longitudinal Quantitative Assessment of COVID-19 Infection Progression from Chest CTs

Ashkan Khakzar, Egon Burian, Leili Goli, Magdalini Paschali, Matthias Keicher, Nassir Navab, Rickmer Braren, Seong Tae Kim, Thomas Wendler, Tobias Czempiel

arxiv:2103.07240 v2 · 2021-03-12 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URDIRBB73HKAY5PVU6RYNC6MZD}

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	2026-07-05T03:00:08.657480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a44688843fd9d40c75f5a7a3868bccc8f2288086fe998cd4b5df96a8cc135e6f

Aliases

arxiv: 2103.07240 · arxiv_version: 2103.07240v2 · doi: 10.48550/arxiv.2103.07240 · pith_short_12: URDIRBB73HKA · pith_short_16: URDIRBB73HKAY5PV · pith_short_8: URDIRBB7

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/URDIRBB73HKAY5PVU6RYNC6MZD \
  | 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: a44688843fd9d40c75f5a7a3868bccc8f2288086fe998cd4b5df96a8cc135e6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "536058f55ee87134c37afbc915479a52cbcb208b080ea741f31a6f431e1f54f2",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-03-12T12:35:11Z",
    "title_canon_sha256": "d368199a8a98c00944b592a5700a06e496a49ac158786fc45e98437a1c3e37f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.07240",
    "kind": "arxiv",
    "version": 2
  }
}