Pith Number

pith:QXRFZV2P

pith:2015:QXRFZV2PNAG4NVCM64FHVMNN7L

not attested not anchored not stored refs pending

Video-Based Action Recognition Using Rate-Invariant Analysis of Covariance Trajectories

Anuj Srivastava, Eric Klassen, Huiling Le, Jingyong Su, Zhengwu Zhang

arxiv:1503.06699 v2 · 2015-03-23 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXRFZV2PNAG4NVCM64FHVMNN7L}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:19:07.696453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85e25cd74f680dc6d44cf70a7ab1adfaf2f6da8d99cb91b8e3aaaaca6f72d402

Aliases

arxiv: 1503.06699 · arxiv_version: 1503.06699v2 · doi: 10.48550/arxiv.1503.06699 · pith_short_12: QXRFZV2PNAG4 · pith_short_16: QXRFZV2PNAG4NVCM · pith_short_8: QXRFZV2P

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/QXRFZV2PNAG4NVCM64FHVMNN7L \
  | 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: 85e25cd74f680dc6d44cf70a7ab1adfaf2f6da8d99cb91b8e3aaaaca6f72d402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b5d991d9b5ded0d07ec89416fe7f440be79518d9d72ff30bd2e507df6514dcf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-03-23T16:08:08Z",
    "title_canon_sha256": "4c4144cde77e8ce1141e3853037344dab9976a3f883bc01a054e83decf8d4f3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06699",
    "kind": "arxiv",
    "version": 2
  }
}