Pith Number

pith:OLRSMSPV

pith:2019:OLRSMSPVYSG6AVTSGNZKF2CMK2

not attested not anchored not stored refs pending

Homography from two orientation- and scale-covariant features

Daniel Barath, Zuzana Kukelova

arxiv:1906.11927 v1 · 2019-06-27 · 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{OLRSMSPVYSG6AVTSGNZKF2CMK2}

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	2026-05-17T23:42:01.594070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e32649f5c48de056723372a2e84c56b1751d835ac0c684a5ccf55f74bf54b5

Aliases

arxiv: 1906.11927 · arxiv_version: 1906.11927v1 · doi: 10.48550/arxiv.1906.11927 · pith_short_12: OLRSMSPVYSG6 · pith_short_16: OLRSMSPVYSG6AVTS · pith_short_8: OLRSMSPV

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/OLRSMSPVYSG6AVTSGNZKF2CMK2 \
  | 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: 72e32649f5c48de056723372a2e84c56b1751d835ac0c684a5ccf55f74bf54b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c76d699fab879f72191db725072f30b4a668ff0b91f7c8cc862a3f5329b1ecc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-06-27T19:34:08Z",
    "title_canon_sha256": "d256dd4402c23d24c4e289fa996b8a1320ec4f7ddd09f5ca90057205fa2f1e2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11927",
    "kind": "arxiv",
    "version": 1
  }
}