Pith Number

pith:7A4ZNLYL

pith:2018:7A4ZNLYLJKH5KJDTMDLLWY2UF6

not attested not anchored not stored refs pending

Using phase instead of optical flow for action recognition

Jan C. van Gemert, Omar Hommos, Pascal S.M. Mettes, Silvia L. Pintea

arxiv:1809.03258 v2 · 2018-09-10 · 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{7A4ZNLYLJKH5KJDTMDLLWY2UF6}

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	2026-05-18T00:05:44.849404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f83996af0b4a8fd5247360d6bb63542f9b7182dcb8599600625f327e65e6ce63

Aliases

arxiv: 1809.03258 · arxiv_version: 1809.03258v2 · doi: 10.48550/arxiv.1809.03258 · pith_short_12: 7A4ZNLYLJKH5 · pith_short_16: 7A4ZNLYLJKH5KJDT · pith_short_8: 7A4ZNLYL

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/7A4ZNLYLJKH5KJDTMDLLWY2UF6 \
  | 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: f83996af0b4a8fd5247360d6bb63542f9b7182dcb8599600625f327e65e6ce63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cdca85a44dc40498d2c7043274f48294a53d2760855fb7b3a008dd97e149ac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-10T12:07:17Z",
    "title_canon_sha256": "59422b3d461c2fbfc27f4888828117ca20ec8db81241e7ed003ad462ee7caae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03258",
    "kind": "arxiv",
    "version": 2
  }
}