Pith Number

pith:NA3GRB2U

pith:2019:NA3GRB2UQL2RHXQAKUW55M2C36

not attested not anchored not stored refs pending

Out the Window: A Crowd-Sourced Dataset for Activity Classification in Security Video

Gregory Castanon, Jeffrey Byrne, Nathan Shnidman, Tim Anderson

arxiv:1908.10899 v2 · 2019-08-28 · 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{NA3GRB2UQL2RHXQAKUW55M2C36}

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	2026-07-05T00:04:44.427672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

683668875482f513de00552ddeb342dfa5fc98881168947ba6678b4e123271b0

Aliases

arxiv: 1908.10899 · arxiv_version: 1908.10899v2 · doi: 10.48550/arxiv.1908.10899 · pith_short_12: NA3GRB2UQL2R · pith_short_16: NA3GRB2UQL2RHXQA · pith_short_8: NA3GRB2U

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/NA3GRB2UQL2RHXQAKUW55M2C36 \
  | 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: 683668875482f513de00552ddeb342dfa5fc98881168947ba6678b4e123271b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5622b0c989eeccf1bfadb19a60960229b8024585f0ef64fdcaba7d6694d138a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-28T18:28:12Z",
    "title_canon_sha256": "d5c7f70a26b8aa671694d0c97f7481a4120138458b80fdb48b4af8007040af5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10899",
    "kind": "arxiv",
    "version": 2
  }
}