Pith Number

pith:A2CUUEZ2

pith:2023:A2CUUEZ2HKGOKDBVV4GFHWLJ2I

not attested not anchored not stored refs pending

PyTomography: A Python Library for Medical Image Reconstruction

Arman Rahmim, Carlos Uribe, Chenguang Li, Lucas A. Polson, Maziar Sabouri, Nikolaos Karakatsanis, Obed Dzikunu, Pedro Esquinas, Peyman Sheikhzadeh, Roberto Fedrigo, Shadab Ahamed

arxiv:2309.01977 v6 · 2023-09-05 · 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{A2CUUEZ2HKGOKDBVV4GFHWLJ2I}

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	2026-07-05T09:55:31.532499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06854a133a3a8ce50c35af0c53d969d21fcf8a013e258af47a1de5d040a69202

Aliases

arxiv: 2309.01977 · arxiv_version: 2309.01977v6 · doi: 10.48550/arxiv.2309.01977 · pith_short_12: A2CUUEZ2HKGO · pith_short_16: A2CUUEZ2HKGOKDBV · pith_short_8: A2CUUEZ2

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/A2CUUEZ2HKGOKDBVV4GFHWLJ2I \
  | 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: 06854a133a3a8ce50c35af0c53d969d21fcf8a013e258af47a1de5d040a69202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57936ed945fa83e6114fc3c11e867585cb37e7af582d18ee949e32ae7ed8027e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2023-09-05T06:12:39Z",
    "title_canon_sha256": "b1555191e6f704367d41257b40c92c55b31f4e6a3f663cc1d13f2f9dca656f5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.01977",
    "kind": "arxiv",
    "version": 6
  }
}