Pith Number

pith:5OCKZCRM

pith:2025:5OCKZCRMEZUBAWPM4PX7M6N4VJ

not attested not anchored not stored refs pending

WatchWitch: Interoperability, Privacy, and Autonomy for the Apple Watch

Alexander Heinrich, Jiska Classen, Matthias Hollick, Nils Rollshausen

arxiv:2507.07210 v1 · 2025-07-09 · 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{5OCKZCRMEZUBAWPM4PX7M6N4VJ}

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	2026-07-05T11:34:32.926614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb84ac8a2c26681059ece3eff679bcaa52bd37fc2a526c8512b7883a66f8f361

Aliases

arxiv: 2507.07210 · arxiv_version: 2507.07210v1 · doi: 10.48550/arxiv.2507.07210 · pith_short_12: 5OCKZCRMEZUB · pith_short_16: 5OCKZCRMEZUBAWPM · pith_short_8: 5OCKZCRM

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/5OCKZCRMEZUBAWPM4PX7M6N4VJ \
  | 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: eb84ac8a2c26681059ece3eff679bcaa52bd37fc2a526c8512b7883a66f8f361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd99ac79c2ada50de55677f85065fbc612f0bc04604b78f0973dddc827561266",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-07-09T18:33:58Z",
    "title_canon_sha256": "772add5b850dfd02e48c63e7385459f6a06e08e14729eaffdc17c6ae5988826b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.07210",
    "kind": "arxiv",
    "version": 1
  }
}