Pith Number

pith:E6IEC6EK

pith:2017:E6IEC6EKAGG2XT76MBG3DSVBLW

not attested not anchored not stored refs pending

RaspiReader: Open Source Fingerprint Reader

Anil K. Jain, Joshua J. Engelsma, Kai Cao

arxiv:1712.09392 v1 · 2017-12-26 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E6IEC6EKAGG2XT76MBG3DSVBLW}

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	2026-05-18T00:27:08.581903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

279041788a018dabcffe604db1caa15da00f554007817ba99454035e7b49ca65

Aliases

arxiv: 1712.09392 · arxiv_version: 1712.09392v1 · doi: 10.48550/arxiv.1712.09392 · pith_short_12: E6IEC6EKAGG2 · pith_short_16: E6IEC6EKAGG2XT76 · pith_short_8: E6IEC6EK

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/E6IEC6EKAGG2XT76MBG3DSVBLW \
  | 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: 279041788a018dabcffe604db1caa15da00f554007817ba99454035e7b49ca65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cefa28971cc33bbe4226ada972d404e8af88b14eee59ab173d6a1182ced35cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-26T20:21:17Z",
    "title_canon_sha256": "ea3cc7eac267221a15f48de190df45215165350d54584421d45b3e1168148167"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09392",
    "kind": "arxiv",
    "version": 1
  }
}