Pith Number

pith:VB4Y36OG

pith:2017:VB4Y36OGVBURC6GW2FHIFSIQBU

not attested not anchored not stored refs pending

Why my photos look sideways or upside down? Detecting Canonical Orientation of Images using Convolutional Neural Networks

Ajay Vijayvargiya, Gaurav Khandelwal, Kunal Swami, Pranav P. Deshpande

arxiv:1712.01195 v1 · 2017-12-04 · 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{VB4Y36OGVBURC6GW2FHIFSIQBU}

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	2026-05-18T00:28:57.688126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8798df9c6a8691178d6d14e82c9100d12c5ad0a86905ad93b85817fbc0d115b

Aliases

arxiv: 1712.01195 · arxiv_version: 1712.01195v1 · doi: 10.48550/arxiv.1712.01195 · pith_short_12: VB4Y36OGVBUR · pith_short_16: VB4Y36OGVBURC6GW · pith_short_8: VB4Y36OG

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/VB4Y36OGVBURC6GW2FHIFSIQBU \
  | 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: a8798df9c6a8691178d6d14e82c9100d12c5ad0a86905ad93b85817fbc0d115b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15d4830952dc92b606c0ab85ea3b195121b29515c1884db158800a6849ee6915",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-04T16:59:34Z",
    "title_canon_sha256": "e240136cc381f482af36b8a0b4c647f752b69c5d0b0f9ee64da1d0403b11bb3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01195",
    "kind": "arxiv",
    "version": 1
  }
}