Pith Number

pith:DZWCD64F

pith:2021:DZWCD64FXV5ZFOHPEZBYZVOUOU

not attested not anchored not stored refs pending

Shape-constrained reconstruction in diffuse optical tomography by simulated annealing

Manabu Machida, Norikazu Todoroki, Tetsuya Mimura, Yu Jiang

arxiv:2107.09799 v1 · 2021-07-07 · 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{DZWCD64FXV5ZFOHPEZBYZVOUOU}

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	2026-07-05T02:59:39.622669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e6c21fb85bd7b92b8ef26438cd5d4753741cb9fc87519642c7e2ffaa66b9382

Aliases

arxiv: 2107.09799 · arxiv_version: 2107.09799v1 · doi: 10.48550/arxiv.2107.09799 · pith_short_12: DZWCD64FXV5Z · pith_short_16: DZWCD64FXV5ZFOHP · pith_short_8: DZWCD64F

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/DZWCD64FXV5ZFOHPEZBYZVOUOU \
  | 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: 1e6c21fb85bd7b92b8ef26438cd5d4753741cb9fc87519642c7e2ffaa66b9382

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da8f6a6762bd72f21d442cf323c9c399848103979f049abd771dcef0990a543b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-07-07T05:02:02Z",
    "title_canon_sha256": "3bfe13b5beb501c0bf264c194436f48fdfaf44314fbfc9293f8ab75c5a53d32a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09799",
    "kind": "arxiv",
    "version": 1
  }
}