pith. sign in
Pith Number

pith:SQSHBC36

pith:2015:SQSHBC36GYPHTYUPU5DCQUWKA5
not attested not anchored not stored refs pending

Lens Factory: Automatic Lens Generation Using Off-the-shelf Components

Brian Guenter, James Hays, Libin Sun, Neel Joshi, Patrick Therien

arxiv:1506.08956 v2 · 2015-06-30 · cs.GR · cs.CV

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{SQSHBC36GYPHTYUPU5DCQUWKA5}

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 2026-05-18T01:36:43.006847Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

9424708b7e361e79e28fa7462852ca0751fd04ceebfd0f4d32f1a00c4495e246

Aliases

arxiv: 1506.08956 · arxiv_version: 1506.08956v2 · doi: 10.48550/arxiv.1506.08956 · pith_short_12: SQSHBC36GYPH · pith_short_16: SQSHBC36GYPHTYUP · pith_short_8: SQSHBC36
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/SQSHBC36GYPHTYUPU5DCQUWKA5 \
  | 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: 9424708b7e361e79e28fa7462852ca0751fd04ceebfd0f4d32f1a00c4495e246
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f8f045900676f0a564fe1f1610a692f8a0b71727f299de7cecfda02044615f26",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2015-06-30T06:39:19Z",
    "title_canon_sha256": "b32aacb4cd0716c1e4cb84c45c5ff75750ed80deb08770299e7e8ef66e5c039f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08956",
    "kind": "arxiv",
    "version": 2
  }
}