Pith Number

pith:NM2Q4VGG

pith:2018:NM2Q4VGGSETOGCZMDRATJP6WPI

not attested not anchored not stored refs pending

GridFace: Face Rectification via Learning Local Homography Transformations

Erjin Zhou, Jian Sun, Zhimin Cao

arxiv:1808.06210 v1 · 2018-08-19 · 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{NM2Q4VGGSETOGCZMDRATJP6WPI}

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	2026-05-18T00:07:45.726685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b350e54c69126e30b2c1c4134bfd67a12dc060d0800a977c638ed4c19abbff1

Aliases

arxiv: 1808.06210 · arxiv_version: 1808.06210v1 · doi: 10.48550/arxiv.1808.06210 · pith_short_12: NM2Q4VGGSETO · pith_short_16: NM2Q4VGGSETOGCZM · pith_short_8: NM2Q4VGG

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/NM2Q4VGGSETOGCZMDRATJP6WPI \
  | 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: 6b350e54c69126e30b2c1c4134bfd67a12dc060d0800a977c638ed4c19abbff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10703787c3326406642fb35b42a3381f0f5b647e1ceb5e6cee1735cf5abe66d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-08-19T13:37:11Z",
    "title_canon_sha256": "1c78ca850686327dc01bdad8486f569ae04420675157af14e5f75b8286896e4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06210",
    "kind": "arxiv",
    "version": 1
  }
}