Pith Number

pith:QKYCRSJK

pith:2019:QKYCRSJKD6VI4B3T3VRPJZTRBZ

not attested not anchored not stored refs pending

DeGraF-Flow: Extending DeGraF Features for accurate and efficient sparse-to-dense optical flow estimation

Felix Stephenson, Ioannis Katramados, Toby Breckon

arxiv:1901.09971 v2 · 2019-01-28 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QKYCRSJKD6VI4B3T3VRPJZTRBZ}

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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	2026-05-17T23:45:52.211492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82b028c92a1faa8e0773dd62f4e6710e502a887af8198e50b8ccaa9b388663d0

Aliases

arxiv: 1901.09971 · arxiv_version: 1901.09971v2 · doi: 10.48550/arxiv.1901.09971 · pith_short_12: QKYCRSJKD6VI · pith_short_16: QKYCRSJKD6VI4B3T · pith_short_8: QKYCRSJK

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/QKYCRSJKD6VI4B3T3VRPJZTRBZ \
  | 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: 82b028c92a1faa8e0773dd62f4e6710e502a887af8198e50b8ccaa9b388663d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c8edb08afd76762560634bd844fc76d30351c52b39612b533bcdcf57985363",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-28T19:55:40Z",
    "title_canon_sha256": "5b98942e6f72d388ca036d1ba8f4562ea1b60788c6834e7f601604c5c0094a5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09971",
    "kind": "arxiv",
    "version": 2
  }
}