Pith Number

pith:ZMXMPNOV

pith:2021:ZMXMPNOVC2WURM62NH7EZHUOYM

not attested not anchored not stored refs pending

Semi-Supervised Action Recognition with Temporal Contrastive Learning

Abir Das, Ankit Singh, Ashutosh Varshney, Kate Saenko, Omprakash Chakraborty, Rameswar Panda, Rogerio Feris

arxiv:2102.02751 v2 · 2021-02-04 · 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{ZMXMPNOVC2WURM62NH7EZHUOYM}

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	2026-07-05T02:26:55.408803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb2ec7b5d516ad48b3da69fe4c9e8ec3214917c492ab58740ba643736936c4e3

Aliases

arxiv: 2102.02751 · arxiv_version: 2102.02751v2 · doi: 10.48550/arxiv.2102.02751 · pith_short_12: ZMXMPNOVC2WU · pith_short_16: ZMXMPNOVC2WURM62 · pith_short_8: ZMXMPNOV

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/ZMXMPNOVC2WURM62NH7EZHUOYM \
  | 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: cb2ec7b5d516ad48b3da69fe4c9e8ec3214917c492ab58740ba643736936c4e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41f65266e612f26ef5bb562bfe7b28b2db4fa7788373d324dce56e7f691e060e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-02-04T17:28:35Z",
    "title_canon_sha256": "d01f8a30359d17c2384ab76d32d7824b090a54266e762f2f0bef3bcc23562c2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02751",
    "kind": "arxiv",
    "version": 2
  }
}