Pith Number

pith:JISJ2IL4

pith:2021:JISJ2IL4MH7FJH3QV5WI42HI3P

not attested not anchored not stored refs pending

Demystifying Removed Apps in iOS App Store

Fuqi Lin

arxiv:2101.05100 v1 · 2021-01-13 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JISJ2IL4MH7FJH3QV5WI42HI3P}

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.

Cited by

1 paper in Pith

Taking a Bite Out of the Forbidden Fruit: Characterizing Third-Party Iranian iOS App Stores

Receipt and verification

First computed	2026-07-05T07:06:16.822235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a249d217c61fe549f70af6c8e68e8dbc6744a3f42248f04fd87a3d71ea35cb8

Aliases

arxiv: 2101.05100 · arxiv_version: 2101.05100v1 · doi: 10.48550/arxiv.2101.05100 · pith_short_12: JISJ2IL4MH7F · pith_short_16: JISJ2IL4MH7FJH3Q · pith_short_8: JISJ2IL4

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/JISJ2IL4MH7FJH3QV5WI42HI3P \
  | 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: 4a249d217c61fe549f70af6c8e68e8dbc6744a3f42248f04fd87a3d71ea35cb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5ff75ec150cd730dd402ce15f3286be54987dc1980588a914cdf6d3a539088a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-01-13T14:34:26Z",
    "title_canon_sha256": "5ae072903b37165b0f0a0a696758037f03d96ec79558cafa90d46d75cbf2d866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.05100",
    "kind": "arxiv",
    "version": 1
  }
}