Pith Number

pith:W5YPYJS7

pith:2025:W5YPYJS7ZZGVWLEIZNZQHXU6RV

not attested not anchored not stored refs pending

Finite element approximation for quantitative photoacoustic tomography in a diffusive regime

Giovanni S. Alberti, Siyu Cen, Zhi Zhou

arxiv:2505.05361 v1 · 2025-05-08 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5YPYJS7ZZGVWLEIZNZQHXU6RV}

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	2026-07-05T11:00:23.149862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b770fc265fce4d5b2c88cb7303de9e8d5921f359503d72ae6610dc10b066287b

Aliases

arxiv: 2505.05361 · arxiv_version: 2505.05361v1 · doi: 10.48550/arxiv.2505.05361 · pith_short_12: W5YPYJS7ZZGV · pith_short_16: W5YPYJS7ZZGVWLEI · pith_short_8: W5YPYJS7

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/W5YPYJS7ZZGVWLEIZNZQHXU6RV \
  | 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: b770fc265fce4d5b2c88cb7303de9e8d5921f359503d72ae6610dc10b066287b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61d79fce1e87fe5bb20d494ff16dc6c89abe9f51dd7b05d081063acd168cf635",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-05-08T15:53:59Z",
    "title_canon_sha256": "247b45d696e158e2702f5fafbf34eab987a9d6355c1e3ed2ffe65fc2b4732bd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05361",
    "kind": "arxiv",
    "version": 1
  }
}