Pith Number

pith:55ZRKRBO

pith:2019:55ZRKRBOLELBEH272KSG7PPW3R

not attested not anchored not stored refs pending

Computed tomography medical image reconstruction on affordable equipment by using out-of-core techniques

Gregorio Quintana-Ort\'i, Gumersindo Verd\'u, M\'onica Chillar\'on, Vicente Vidal

arxiv:1907.01891 v1 · 2019-06-27 · eess.IV · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55ZRKRBOLELBEH272KSG7PPW3R}

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	2026-05-17T23:41:34.627553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef7315442e5916121f5fd2a46fbdf6dc40d7eccdd8d0a093a6292af23157be8b

Aliases

arxiv: 1907.01891 · arxiv_version: 1907.01891v1 · doi: 10.48550/arxiv.1907.01891 · pith_short_12: 55ZRKRBOLELB · pith_short_16: 55ZRKRBOLELBEH27 · pith_short_8: 55ZRKRBO

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/55ZRKRBOLELBEH272KSG7PPW3R \
  | 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: ef7315442e5916121f5fd2a46fbdf6dc40d7eccdd8d0a093a6292af23157be8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "875bed093b8f874cbec63c8cb5c1dcea5737d2e26808a114b839feb08798d7cf",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-06-27T10:37:37Z",
    "title_canon_sha256": "7e95448b7002a6bbf2a676813a0cc9d499f8f1d9e92061c181d5f867c0964b3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01891",
    "kind": "arxiv",
    "version": 1
  }
}