Pith Number

pith:KQ45NKLK

pith:2023:KQ45NKLKKUWH7WZANYZFMIPQZN

not attested not anchored not stored refs pending

An in-silico study of travel time estimation using Eikonal equation with finite element method in ultrasound imaging

Feixiao Long, Weiguang Zhang

arxiv:2312.01039 v2 · 2023-12-02 · 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{KQ45NKLKKUWH7WZANYZFMIPQZN}

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	2026-07-05T07:22:26.999195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5439d6a96a552c7fdb206e325621f0cb5bfaff871b707e09c0cd8942022d658b

Aliases

arxiv: 2312.01039 · arxiv_version: 2312.01039v2 · doi: 10.48550/arxiv.2312.01039 · pith_short_12: KQ45NKLKKUWH · pith_short_16: KQ45NKLKKUWH7WZA · pith_short_8: KQ45NKLK

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/KQ45NKLKKUWH7WZANYZFMIPQZN \
  | 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: 5439d6a96a552c7fdb206e325621f0cb5bfaff871b707e09c0cd8942022d658b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9713311fe96d90ba7491b01980a42286cb95c251d95c3f53dd29028a6d03534d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2023-12-02T05:49:45Z",
    "title_canon_sha256": "e037ef205fca48ea48c9bbf16df662f5b6eb2369fec7f4f555f691620c705091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.01039",
    "kind": "arxiv",
    "version": 2
  }
}