Pith Number

pith:L74THM3P

pith:2013:L74THM3PI5HWJVVOTIXVUUND6Y

not attested not anchored not stored refs pending

Comparison of fractional wave equations for power law attenuation in ultrasound and elastography

Sven Peter N\"asholm, Sverre Holm

arxiv:1306.6507 v3 · 2013-06-27 · physics.class-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{L74THM3PI5HWJVVOTIXVUUND6Y}

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	2026-05-18T03:01:10.474780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ff933b36f474f64d6ae9a2f5a51a3f60c93844be328c7825f71c0fd32f231d9

Aliases

arxiv: 1306.6507 · arxiv_version: 1306.6507v3 · doi: 10.48550/arxiv.1306.6507 · pith_short_12: L74THM3PI5HW · pith_short_16: L74THM3PI5HWJVVO · pith_short_8: L74THM3P

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/L74THM3PI5HWJVVOTIXVUUND6Y \
  | 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: 5ff933b36f474f64d6ae9a2f5a51a3f60c93844be328c7825f71c0fd32f231d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00fc2e48f81f6b9fdc1965d7bf1c7efe6a0d9226a155a12defd8b1588231d536",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2013-06-27T14:15:36Z",
    "title_canon_sha256": "d9ee1e68e6708da193c6725a47ea37a31da33bc2b119ba9c60a5475d6eedde4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6507",
    "kind": "arxiv",
    "version": 3
  }
}