Pith Number

pith:UR4NQDPT

pith:2018:UR4NQDPTUM4ICRB3PQHPEB42V5

not attested not anchored not stored refs pending

Characterizing impacts of model uncertainties in quantitative photoacoustics

Kui Ren, Sarah Vall\'elian

arxiv:1812.02876 v1 · 2018-12-07 · math.NA · math.AP · physics.comp-ph · physics.med-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UR4NQDPTUM4ICRB3PQHPEB42V5}

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	2026-05-17T23:58:51.568745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a478d80df3a33881443b7c0ef2079aaf63db574d91461c42ae4309b3cdfeae57

Aliases

arxiv: 1812.02876 · arxiv_version: 1812.02876v1 · doi: 10.48550/arxiv.1812.02876 · pith_short_12: UR4NQDPTUM4I · pith_short_16: UR4NQDPTUM4ICRB3 · pith_short_8: UR4NQDPT

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/UR4NQDPTUM4ICRB3PQHPEB42V5 \
  | 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: a478d80df3a33881443b7c0ef2079aaf63db574d91461c42ae4309b3cdfeae57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24ee8c348223a0f2f4399cea894e8b338a07ca7ba5870e905cb53092e680d0cb",
    "cross_cats_sorted": [
      "math.AP",
      "physics.comp-ph",
      "physics.med-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-07T02:12:24Z",
    "title_canon_sha256": "f279c2773cd280ed2b914c7e4eea380eb5af7fedbdd2d9ccc1a8b79fbbb2bd68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02876",
    "kind": "arxiv",
    "version": 1
  }
}