Pith Number

pith:RZFX6H4Z

pith:2019:RZFX6H4ZHZMRJYA4YUDSR7Z4V5

not attested not anchored not stored refs pending

Graph- and finite element-based total variation models for the inverse problem in diffuse optical tomography

David Orive-Miguel, Iain B Styles, Jinming Duan, Lionel Herve, Wenqi Lu

arxiv:1901.01969 v2 · 2019-01-07 · cs.CV · 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{RZFX6H4ZHZMRJYA4YUDSR7Z4V5}

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	2026-05-17T23:49:21.977484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e4b7f1f993e5914e01cc50728ff3caf506aab48c87094790de44ca20f2b6e2a

Aliases

arxiv: 1901.01969 · arxiv_version: 1901.01969v2 · doi: 10.48550/arxiv.1901.01969 · pith_short_12: RZFX6H4ZHZMR · pith_short_16: RZFX6H4ZHZMRJYA4 · pith_short_8: RZFX6H4Z

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/RZFX6H4ZHZMRJYA4YUDSR7Z4V5 \
  | 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: 8e4b7f1f993e5914e01cc50728ff3caf506aab48c87094790de44ca20f2b6e2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62f8bd5589c30f756359d00512405aff69ddd9dac954841d08a2d35b86514773",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-07T18:52:32Z",
    "title_canon_sha256": "8427693a0f65c634046e8deb655dc9c28a9f4dea7d579d16746437b16ebbbc03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01969",
    "kind": "arxiv",
    "version": 2
  }
}