Pith Number

pith:32H7YWI3

pith:2018:32H7YWI3ZJVDTBZSRSD56TTVWX

not attested not anchored not stored refs pending

Detecting and Summarizing GUI Changes in Evolving Mobile Apps

Cody Watson, Denys Poshyvanyk, George Purnell, John Hoskins, Kevin Moran

arxiv:1807.09440 v3 · 2018-07-25 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{32H7YWI3ZJVDTBZSRSD56TTVWX}

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	2026-05-18T00:06:31.517212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de8ffc591bca6a3987328c87df4e75b5fbbd1f5f547afeb92fc8591f92633afd

Aliases

arxiv: 1807.09440 · arxiv_version: 1807.09440v3 · doi: 10.48550/arxiv.1807.09440 · pith_short_12: 32H7YWI3ZJVD · pith_short_16: 32H7YWI3ZJVDTBZS · pith_short_8: 32H7YWI3

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/32H7YWI3ZJVDTBZSRSD56TTVWX \
  | 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: de8ffc591bca6a3987328c87df4e75b5fbbd1f5f547afeb92fc8591f92633afd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bb8b56f4bee8a8a3e5298563025164e0b796fe40bbf923fe4a67fe1203a74b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-07-25T05:46:33Z",
    "title_canon_sha256": "0b9a40ef69ce5a33f5a0bacf865e9ecc48300c5336efa141f9dff48fb28d8a1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09440",
    "kind": "arxiv",
    "version": 3
  }
}