Pith Number

pith:2IJZWTLY

pith:2015:2IJZWTLYVT7LQVDYW3T5FGIR35

not attested not anchored not stored refs pending

Activity recognition from videos with parallel hypergraph matching on GPUs

B\"ulent Sankur, Christian Wolf, Eric Lombardi, Oya Celiktutan

arxiv:1505.00581 v1 · 2015-05-04 · 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{2IJZWTLYVT7LQVDYW3T5FGIR35}

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	2026-05-18T02:17:02.496880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2139b4d78acfeb85478b6e7d29911df67dbf040f9431903330de1275aca811b

Aliases

arxiv: 1505.00581 · arxiv_version: 1505.00581v1 · doi: 10.48550/arxiv.1505.00581 · pith_short_12: 2IJZWTLYVT7L · pith_short_16: 2IJZWTLYVT7LQVDY · pith_short_8: 2IJZWTLY

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/2IJZWTLYVT7LQVDYW3T5FGIR35 \
  | 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: d2139b4d78acfeb85478b6e7d29911df67dbf040f9431903330de1275aca811b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06fcb65d0d16ac48fdc1821be3a5ec15bd027135a75239c257fe7110ad5a30d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-05-04T10:30:47Z",
    "title_canon_sha256": "9f468aeecf49bb708aa3446888b2a8cf4d587697328e4c6ba7c52c2b467055d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00581",
    "kind": "arxiv",
    "version": 1
  }
}