Pith Number

pith:H6CHLWG7

pith:2018:H6CHLWG7QR664Z3UC4A2TWHZNP

not attested not anchored not stored refs pending

Evaluation of Adjoint Methods in Photoacoustic Tomography with Under-Sampled Sensors

Hongxiang Lin, Mehmet Burcin Unlu, Shu Takagi, Takashi Azuma

arxiv:1806.08558 v1 · 2018-06-22 · math.NA · physics.comp-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{H6CHLWG7QR664Z3UC4A2TWHZNP}

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	2026-05-18T00:12:36.822407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8475d8df847dee67741701a9d8f96bc56b4f8ec12b5c7ec271b73ac2a341f6

Aliases

arxiv: 1806.08558 · arxiv_version: 1806.08558v1 · doi: 10.48550/arxiv.1806.08558 · pith_short_12: H6CHLWG7QR66 · pith_short_16: H6CHLWG7QR664Z3U · pith_short_8: H6CHLWG7

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/H6CHLWG7QR664Z3UC4A2TWHZNP \
  | 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: 3f8475d8df847dee67741701a9d8f96bc56b4f8ec12b5c7ec271b73ac2a341f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b6894f51921fe2cec220e2981564ad7b627ea89398ca57b56447e810409cd64",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-06-22T08:52:18Z",
    "title_canon_sha256": "ec850edf5df4fe1935f1d2a607208397c20450865a6809e0f376b89de4429af6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08558",
    "kind": "arxiv",
    "version": 1
  }
}