Pith Number

pith:D63XQV7W

pith:2015:D63XQV7WXSHPVJT7MCVDIPNNXB

not attested not anchored not stored refs pending

On Optical Flow Models for Variational Motion Estimation

Hendrik Dirks, Lena Frerking, Martin Burger

arxiv:1512.00298 v1 · 2015-12-01 · math.NA · cs.CV · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D63XQV7WXSHPVJT7MCVDIPNNXB}

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	2026-05-18T01:25:32.295689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fb77857f6bc8efaa67f60aa343dadb875223f711a488d9f126db9a5d6ef31a3

Aliases

arxiv: 1512.00298 · arxiv_version: 1512.00298v1 · doi: 10.48550/arxiv.1512.00298 · pith_short_12: D63XQV7WXSHP · pith_short_16: D63XQV7WXSHPVJT7 · pith_short_8: D63XQV7W

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/D63XQV7WXSHPVJT7MCVDIPNNXB \
  | 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: 1fb77857f6bc8efaa67f60aa343dadb875223f711a488d9f126db9a5d6ef31a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9184f0ee18dc244e8d959a25e21585774a56f9f878e65556f5cc2b080d98dc78",
    "cross_cats_sorted": [
      "cs.CV",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-12-01T15:37:19Z",
    "title_canon_sha256": "874386414992c73a7e67e314a5e732002d7debe020ae78ad0a00d3b09d35e6c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00298",
    "kind": "arxiv",
    "version": 1
  }
}