Pith Number

pith:I4FWVZDX

pith:2019:I4FWVZDXOEOZY2QNG2ZYQV4PMD

not attested not anchored not stored refs pending

Context-Constrained Accurate Contour Extraction for Occlusion Edge Detection

Anlong Ming, Menghan Zhou, Rui Lu, Yu Zhou

arxiv:1903.08890 v1 · 2019-03-21 · 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{I4FWVZDXOEOZY2QNG2ZYQV4PMD}

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	2026-05-17T23:50:43.659200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

470b6ae477711d9c6a0d36b388578f60d1ea1f95f5df5f55bb4eaff8d3c5176b

Aliases

arxiv: 1903.08890 · arxiv_version: 1903.08890v1 · doi: 10.48550/arxiv.1903.08890 · pith_short_12: I4FWVZDXOEOZ · pith_short_16: I4FWVZDXOEOZY2QN · pith_short_8: I4FWVZDX

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/I4FWVZDXOEOZY2QNG2ZYQV4PMD \
  | 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: 470b6ae477711d9c6a0d36b388578f60d1ea1f95f5df5f55bb4eaff8d3c5176b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f783d61cbc5ed40d3f64b09f9ef8d1952de9414e1e91023c47608e00b739ed46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-21T09:21:41Z",
    "title_canon_sha256": "32fc7621e47395b9af06b6ce7004eed0bda82301936db30d215beec4938479cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08890",
    "kind": "arxiv",
    "version": 1
  }
}