Pith Number

pith:AOWHHVSH

pith:2020:AOWHHVSH7ELPBBGQP6COGHPGD7

not attested not anchored not stored refs pending

FFD: Fast Feature Detector

Bernard Tiddeman, Morteza Ghahremani, Yonghuai Liu

arxiv:2012.00859 v1 · 2020-12-01 · 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{AOWHHVSH7ELPBBGQP6COGHPGD7}

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	2026-07-05T02:12:13.562206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03ac73d647f916f084d07f84e31de61fdf343f9f7404ec3fdaf9cfafe6ed67c6

Aliases

arxiv: 2012.00859 · arxiv_version: 2012.00859v1 · doi: 10.48550/arxiv.2012.00859 · pith_short_12: AOWHHVSH7ELP · pith_short_16: AOWHHVSH7ELPBBGQ · pith_short_8: AOWHHVSH

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/AOWHHVSH7ELPBBGQP6COGHPGD7 \
  | 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: 03ac73d647f916f084d07f84e31de61fdf343f9f7404ec3fdaf9cfafe6ed67c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88c18e100156062eebb906e172409337e090ab941bdf4c26ff67a477cc1a0d28",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-12-01T21:56:35Z",
    "title_canon_sha256": "b85a45496c08224522dec6da4a34b3bbe1cdf05a110638fb7fc4121912eb491d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00859",
    "kind": "arxiv",
    "version": 1
  }
}