Pith Number

pith:2NZJWS3C

pith:2017:2NZJWS3CLI5TKG3NDRA45TBV62

not attested not anchored not stored refs pending

A Fast Method For Computing Principal Curvatures From Range Images

Andrew Spek, Tom Drummond, Wai Ho Li

arxiv:1707.00385 v2 · 2017-07-03 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NZJWS3CLI5TKG3NDRA45TBV62}

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	2026-05-18T00:40:18.904226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3729b4b625a3b351b6d1c41cecc35f6a652fa6bea7ad8d196607a7b0dbc98c8

Aliases

arxiv: 1707.00385 · arxiv_version: 1707.00385v2 · doi: 10.48550/arxiv.1707.00385 · pith_short_12: 2NZJWS3CLI5T · pith_short_16: 2NZJWS3CLI5TKG3N · pith_short_8: 2NZJWS3C

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/2NZJWS3CLI5TKG3NDRA45TBV62 \
  | 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: d3729b4b625a3b351b6d1c41cecc35f6a652fa6bea7ad8d196607a7b0dbc98c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0940b54cfe0c6e2d64ce591d8999d5425ded854bc05a8d9d2c132c66cc8dfe4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-07-03T03:01:44Z",
    "title_canon_sha256": "a9bf1632ca7676d2d00b5dd769bf5892e025d73f08f03c74837a1e31a89f6f35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.00385",
    "kind": "arxiv",
    "version": 2
  }
}