Pith Number

pith:WCDBLO2D

pith:2018:WCDBLO2D7HHBA53EKBCFKUAQIE

not attested not anchored not stored refs pending

Image Captioning Based on a Hierarchical Attention Mechanism and Policy Gradient Optimization

Bailing Zhang, Fangyu Wu, Jeremy S. Smith, Shiyang Yan, Wenjin Lu, Yuan Xie

arxiv:1811.05253 v2 · 2018-11-13 · 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{WCDBLO2D7HHBA53EKBCFKUAQIE}

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	2026-05-17T23:56:33.343613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b08615bb43f9ce1077645044555010412e091da10bc7819690476d63308c880e

Aliases

arxiv: 1811.05253 · arxiv_version: 1811.05253v2 · doi: 10.48550/arxiv.1811.05253 · pith_short_12: WCDBLO2D7HHB · pith_short_16: WCDBLO2D7HHBA53E · pith_short_8: WCDBLO2D

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/WCDBLO2D7HHBA53EKBCFKUAQIE \
  | 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: b08615bb43f9ce1077645044555010412e091da10bc7819690476d63308c880e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ea0a1b0845c7831b2c44c864d2d6ebb5ee54b0a37c8fcf1e92e9966f20a25fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-11-13T12:31:26Z",
    "title_canon_sha256": "f8f9e6c8f2043ca63a7dbe1e8789de02d7137e49e08cc8c896223926c99eb1f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05253",
    "kind": "arxiv",
    "version": 2
  }
}