Pith Number

pith:7FI3ELD5

pith:2014:7FI3ELD5NE4KBJJV3RQUVRROPS

not attested not anchored not stored refs pending

ScreenAvoider: Protecting Computer Screens from Ubiquitous Cameras

Apu Kapadia, David Crandall, Dennis Chen, Mohammed Korayem, Robert Templeman

arxiv:1412.0008 v1 · 2014-11-28 · 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{7FI3ELD5NE4KBJJV3RQUVRROPS}

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	2026-05-18T02:32:31.520772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f951b22c7d6938a0a535dc614ac62e7caabf8013d39960fa993518e392cd5353

Aliases

arxiv: 1412.0008 · arxiv_version: 1412.0008v1 · doi: 10.48550/arxiv.1412.0008 · pith_short_12: 7FI3ELD5NE4K · pith_short_16: 7FI3ELD5NE4KBJJV · pith_short_8: 7FI3ELD5

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/7FI3ELD5NE4KBJJV3RQUVRROPS \
  | 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: f951b22c7d6938a0a535dc614ac62e7caabf8013d39960fa993518e392cd5353

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2f6ac8b5198bbcd58b64ecd5ad5268ae6135aea8665902eb1b4664a4ba68511",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2014-11-28T01:50:53Z",
    "title_canon_sha256": "e3fd852e3c59c4cf44c98c905c1018005b13c51b4fcaa5720f3ab314895e5f91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0008",
    "kind": "arxiv",
    "version": 1
  }
}