Pith Number

pith:3JWHMFXR

pith:2017:3JWHMFXR7VWDOUNQBS4O2DWTY2

not attested not anchored not stored refs pending

The German eID as an Authentication Token on Android Devices

Florian Otterbein, Marian Margraf, Tim Ohlendorf

arxiv:1701.04013 v1 · 2017-01-15 · 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{3JWHMFXR7VWDOUNQBS4O2DWTY2}

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	2026-05-18T00:52:48.105359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da6c7616f1fd6c3751b00cb8ed0ed3c6bb77a53a129ac34b1d7c615082b0295b

Aliases

arxiv: 1701.04013 · arxiv_version: 1701.04013v1 · doi: 10.48550/arxiv.1701.04013 · pith_short_12: 3JWHMFXR7VWD · pith_short_16: 3JWHMFXR7VWDOUNQ · pith_short_8: 3JWHMFXR

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/3JWHMFXR7VWDOUNQBS4O2DWTY2 \
  | 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: da6c7616f1fd6c3751b00cb8ed0ed3c6bb77a53a129ac34b1d7c615082b0295b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5da1867acec771f9b5b9cc029d3fd7f352521297aa4559a7853b7ad47af7e012",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-01-15T09:45:52Z",
    "title_canon_sha256": "27a3e1dc2c261fd17d958554e44b81921b27bd1d53d6b64f43926ea145c2a8a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04013",
    "kind": "arxiv",
    "version": 1
  }
}