Pith Number

pith:UPMSAHAJ

pith:2014:UPMSAHAJWM6HR3NMUNKWQNAQ72

not attested not anchored not stored refs pending

Gradient-based quantitative image reconstruction in ultrasound-modulated optical tomography: first harmonic measurement type in a linearised diffusion formulation

Samuel Powell, Simon R. Arridge, Terence S. Leung

arxiv:1409.2035 v3 · 2014-09-06 · physics.med-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{UPMSAHAJWM6HR3NMUNKWQNAQ72}

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	2026-05-18T01:18:52.910674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3d9201c09b33c78edaca355683410fe8e992145577e5d9bb41a8719de5d6d63

Aliases

arxiv: 1409.2035 · arxiv_version: 1409.2035v3 · doi: 10.48550/arxiv.1409.2035 · pith_short_12: UPMSAHAJWM6H · pith_short_16: UPMSAHAJWM6HR3NM · pith_short_8: UPMSAHAJ

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/UPMSAHAJWM6HR3NMUNKWQNAQ72 \
  | 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: a3d9201c09b33c78edaca355683410fe8e992145577e5d9bb41a8719de5d6d63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cc79b4fed031b69d439cc8b02059640b0a1c191ee598da08249b25b3a9b7d4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2014-09-06T17:21:09Z",
    "title_canon_sha256": "3786ea3c71e7142dd18c15f24a751daf83a5757b0966d68dad6a8b2cb1e88d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2035",
    "kind": "arxiv",
    "version": 3
  }
}