Pith Number

pith:EGO4WQKK

pith:2015:EGO4WQKKF5BHX52JUJBRPT5WPS

not attested not anchored not stored refs pending

An Empirical Study on Display Ad Impression Viewability Measurements

Jun Wang, Tianxiong Zhou, Weinan Zhang, Ye Pan

arxiv:1505.05788 v1 · 2015-05-21 · cs.HC · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGO4WQKKF5BHX52JUJBRPT5WPS}

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	2026-05-18T02:03:53.488693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

219dcb414a2f427bf749a24317cfb67c9a02b070edae0cdd4e96182b03d3dcf5

Aliases

arxiv: 1505.05788 · arxiv_version: 1505.05788v1 · doi: 10.48550/arxiv.1505.05788 · pith_short_12: EGO4WQKKF5BH · pith_short_16: EGO4WQKKF5BHX52J · pith_short_8: EGO4WQKK

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/EGO4WQKKF5BHX52JUJBRPT5WPS \
  | 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: 219dcb414a2f427bf749a24317cfb67c9a02b070edae0cdd4e96182b03d3dcf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d38d2cdf38009bafd6cc34d22066cbed5e2ecb4e93a8d1886f2f4c220ceab64d",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2015-05-21T17:00:23Z",
    "title_canon_sha256": "ce41e8d3b5ad9c39380dda96bac42c4ad2777bbb9e510e5b917bafe2d21001c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05788",
    "kind": "arxiv",
    "version": 1
  }
}