Pith Number

pith:VDTQJF4S

pith:2021:VDTQJF4SKNCFWSYRIRQVPL4XKM

not attested not anchored not stored refs pending

Spot What Matters: Learning Context Using Graph Convolutional Networks for Weakly-Supervised Action Detection

Fieke Hillerstr\"om, Gertjan Burghouts, Michail Tsiaousis, Peter van der Putten

arxiv:2107.13648 v1 · 2021-07-28 · cs.LG · 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{VDTQJF4SKNCFWSYRIRQVPL4XKM}

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	2026-07-05T03:01:50.157042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8e704979253445b4b11446157af97533d293c2fc0b7cd79d009f1407e71ed7d

Aliases

arxiv: 2107.13648 · arxiv_version: 2107.13648v1 · doi: 10.48550/arxiv.2107.13648 · pith_short_12: VDTQJF4SKNCF · pith_short_16: VDTQJF4SKNCFWSYR · pith_short_8: VDTQJF4S

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/VDTQJF4SKNCFWSYRIRQVPL4XKM \
  | 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: a8e704979253445b4b11446157af97533d293c2fc0b7cd79d009f1407e71ed7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddee413c0e6661b29e6f08e1ef4ca7878ab520c807a8a5ff8a3299a358f14487",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-28T21:37:18Z",
    "title_canon_sha256": "69f2c29a7bad0d0dc33f10274aa2f266b809a796885e45b68e4b687eab739504"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13648",
    "kind": "arxiv",
    "version": 1
  }
}