Pith Number

pith:BLZBNO53

pith:2015:BLZBNO53XUWYTPTZSYXEQABXDI

not attested not anchored not stored refs pending

A Self-Compiling Android Data Obfuscation Tool

Alex Kolpa, Alex Walterbos, Johan Pouwelse, Joris van den Oever, Olivier Hokke

arxiv:1502.01625 v2 · 2015-02-05 · 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{BLZBNO53XUWYTPTZSYXEQABXDI}

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	2026-05-18T02:27:43.688068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af216bbbbbd2d89be79962e4800371a0dcd8d868adf918a55fb30c277467459

Aliases

arxiv: 1502.01625 · arxiv_version: 1502.01625v2 · doi: 10.48550/arxiv.1502.01625 · pith_short_12: BLZBNO53XUWY · pith_short_16: BLZBNO53XUWYTPTZ · pith_short_8: BLZBNO53

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/BLZBNO53XUWYTPTZSYXEQABXDI \
  | 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: 0af216bbbbbd2d89be79962e4800371a0dcd8d868adf918a55fb30c277467459

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56de09072747aaf7f757dfd31a379904d9254a6e774080b1a970d9ef3b4e9cef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-02-05T16:27:44Z",
    "title_canon_sha256": "d41603d713de1ea73fef4f65925565a940d59c16b0dccdec13faa88c5172cdf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01625",
    "kind": "arxiv",
    "version": 2
  }
}