Pith Number

pith:QJXRVE36

pith:2019:QJXRVE36RG2IUNXI5XSSBC6Z7D

not attested not anchored not stored refs pending

Informing Computer Vision with Optical Illusions

David M. W. Powers, Nasim Nematzadeh, Trent Lewis

arxiv:1902.02922 v1 · 2019-02-08 · cs.CV · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJXRVE36RG2IUNXI5XSSBC6Z7D}

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	2026-05-17T23:54:28.828684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd

Aliases

arxiv: 1902.02922 · arxiv_version: 1902.02922v1 · doi: 10.48550/arxiv.1902.02922 · pith_short_12: QJXRVE36RG2I · pith_short_16: QJXRVE36RG2IUNXI · pith_short_8: QJXRVE36

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/QJXRVE36RG2IUNXI5XSSBC6Z7D \
  | 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: 826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc247dfe1d463307e786b81d4e5e54748dff7c5bdd6387f53b18b83bfa2b1d0c",
    "cross_cats_sorted": [
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-02-08T03:06:29Z",
    "title_canon_sha256": "634a611b21fb4f45fd7e5d73a7b8f6a238e7c31f4319fb740c3229fc72054d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02922",
    "kind": "arxiv",
    "version": 1
  }
}