Pith Number

pith:SPHPWQAP

pith:2019:SPHPWQAPAC32M2ZNVGVVDQ5YMY

not attested not anchored not stored refs pending

A Better Way to Attend: Attention with Trees for Video Question Answering

Deng Cai, Hongyang Xue, Wenqing Chu, Zhou Zhao

arxiv:1909.02218 v1 · 2019-09-05 · cs.CV · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPHPWQAPAC32M2ZNVGVVDQ5YMY}

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	2026-07-05T00:04:19.825424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93cefb400f00b7a66b2da9ab51c3b86600e75af916eeab149e116334ff16eca1

Aliases

arxiv: 1909.02218 · arxiv_version: 1909.02218v1 · doi: 10.48550/arxiv.1909.02218 · pith_short_12: SPHPWQAPAC32 · pith_short_16: SPHPWQAPAC32M2ZN · pith_short_8: SPHPWQAP

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/SPHPWQAPAC32M2ZNVGVVDQ5YMY \
  | 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: 93cefb400f00b7a66b2da9ab51c3b86600e75af916eeab149e116334ff16eca1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fea21b8d8211b75268b684b420f2204c4714b4c1ae2a3ede5c39cbb91b122d59",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-09-05T05:48:51Z",
    "title_canon_sha256": "afa5e01980f7ae9bb28972efd582935bd5f73bf46bd7ee924fadb95bbc7c19f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02218",
    "kind": "arxiv",
    "version": 1
  }
}