Pith Number

pith:NP4ODDD3

pith:2019:NP4ODDD3MCLET35YI7ZVXTZZ3U

not attested not anchored not stored refs pending

Quantifying Legibility of Indoor Spaces Using Deep Convolutional Neural Networks: Case Studies in Train Stations

Bill Cai, Carlo Ratti, Fabio Duarte, Fan Zhang, Lenna Johnsen, Louis Charron, Qianhui Liang, Zhoutong Wang

arxiv:1901.10553 v1 · 2019-01-22 · cs.CY · 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{NP4ODDD3MCLET35YI7ZVXTZZ3U}

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	2026-05-17T23:43:27.957771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf8e18c7b609649efb847f35bcf39dd0e40e592aada4559137ea5983f0b342d

Aliases

arxiv: 1901.10553 · arxiv_version: 1901.10553v1 · doi: 10.48550/arxiv.1901.10553 · pith_short_12: NP4ODDD3MCLE · pith_short_16: NP4ODDD3MCLET35Y · pith_short_8: NP4ODDD3

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/NP4ODDD3MCLET35YI7ZVXTZZ3U \
  | 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: 6bf8e18c7b609649efb847f35bcf39dd0e40e592aada4559137ea5983f0b342d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24ef8bbfe5919ece4de9a440674fc4f9e749901b3f9e6dba1f1bc54620245730",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-01-22T14:52:07Z",
    "title_canon_sha256": "cf3c8ac2e3940ed862bf4fa6395e05c2e157beff0181ede0748ceb5709a07841"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10553",
    "kind": "arxiv",
    "version": 1
  }
}