Pith Number

pith:266PPCXY

pith:2025:266PPCXY4ITU3B2ZI562AFMJOY

not attested not anchored not stored refs pending

Fingerprinting SDKs for Mobile Apps and Where to Find Them: Understanding the Market for Device Fingerprinting

Abbie Farr, Bo Ma, Dave Kleidermacher, Fengguo Wei, Michael A. Specter, Mihai Christodorescu, Robin Lassonde, Saswat Anand, Xiang Pan, Xiaoyang Xu

arxiv:2506.22639 v1 · 2025-06-27 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{266PPCXY4ITU3B2ZI562AFMJOY}

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	2026-07-05T11:28:42.300481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7bcf78af8e2274d8759477da01589761048f08688ad0b98c67edfcc434e8755

Aliases

arxiv: 2506.22639 · arxiv_version: 2506.22639v1 · doi: 10.48550/arxiv.2506.22639 · pith_short_12: 266PPCXY4ITU · pith_short_16: 266PPCXY4ITU3B2Z · pith_short_8: 266PPCXY

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/266PPCXY4ITU3B2ZI562AFMJOY \
  | 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: d7bcf78af8e2274d8759477da01589761048f08688ad0b98c67edfcc434e8755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a17074bf0e69a6d4f066c81bf99bd61c75685e2dc9b557f167b48145ffd2b26b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-06-27T21:05:48Z",
    "title_canon_sha256": "fa13012a7ae46940619fc4b49c852f0d721cc956f757ee6251bcb678717eab6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.22639",
    "kind": "arxiv",
    "version": 1
  }
}