Pith Number

pith:ZH4P4L3L

pith:2019:ZH4P4L3L3IKMNIK5VG7ZJDI4Y6

not attested not anchored not stored refs pending

CT Data of a Pen-Spring: Application to Under-Sampled Dynamic X-ray Tomography

Juliaana Juurakko, Simo S\"arkk\"a, Zenith Purisha

arxiv:1907.01871 v1 · 2019-07-03 · physics.med-ph · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZH4P4L3L3IKMNIK5VG7ZJDI4Y6}

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	2026-05-17T23:41:34.730298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9f8fe2f6bda14c6a15da9bf948d1cc7bb875fc8ac55b2fec7aaff5b48d21654

Aliases

arxiv: 1907.01871 · arxiv_version: 1907.01871v1 · doi: 10.48550/arxiv.1907.01871 · pith_short_12: ZH4P4L3L3IKM · pith_short_16: ZH4P4L3L3IKMNIK5 · pith_short_8: ZH4P4L3L

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/ZH4P4L3L3IKMNIK5VG7ZJDI4Y6 \
  | 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: c9f8fe2f6bda14c6a15da9bf948d1cc7bb875fc8ac55b2fec7aaff5b48d21654

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b707be60cdfe37d5628f1c4d3db06fca816bed0fc7e65bc30672286ee33d5c1",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-07-03T12:07:24Z",
    "title_canon_sha256": "124613d4488968dbe443efec40720b2960e984db08e44e0c84ef6f016997f237"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01871",
    "kind": "arxiv",
    "version": 1
  }
}