Pith Number

pith:IFHOWHIO

pith:2020:IFHOWHIOJNLRCJDPWZQFHXECXY

not attested not anchored not stored refs pending

Frequency Sub-Sampling of Ultrasound Non-Destructive Measurements: Acquisition, Reconstruction and Performance

Christoph W. Wagner, Eduardo P\'erez, Florian R\"omer, Giovanni Del Galdo, Jan Kirchhof, Sebastian Semper

arxiv:2012.04534 v1 · 2020-12-08 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFHOWHIOJNLRCJDPWZQFHXECXY}

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	2026-07-05T01:58:04.673778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

414eeb1d0e4b5711246fb66053dc82be071bbdd26d08eb364e6a56739c75db33

Aliases

arxiv: 2012.04534 · arxiv_version: 2012.04534v1 · doi: 10.48550/arxiv.2012.04534 · pith_short_12: IFHOWHIOJNLR · pith_short_16: IFHOWHIOJNLRCJDP · pith_short_8: IFHOWHIO

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/IFHOWHIOJNLRCJDPWZQFHXECXY \
  | 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: 414eeb1d0e4b5711246fb66053dc82be071bbdd26d08eb364e6a56739c75db33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47d90083f63e687cb2b101f903ac53156ed9b09a6b09f696230b509c9619e29e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2020-12-08T16:22:15Z",
    "title_canon_sha256": "c1b86f9b37e53cfb99bec479a7028342f7ea287e629d34e853577b75806b7cd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04534",
    "kind": "arxiv",
    "version": 1
  }
}