Pith Number

pith:6J5B7G7I

pith:2021:6J5B7G7IQTZ5QMD4ALNQSOIHEY

not attested not anchored not stored refs pending

Cybersecurity Knowledge and Skills Taught in Capture the Flag Challenges

Jan Vykopal, Pavel \v{C}eleda, Silvia Bri\v{s}\'akov\'a, Valdemar \v{S}v\'abensk\'y

arxiv:2101.01421 v1 · 2021-01-05 · 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{6J5B7G7IQTZ5QMD4ALNQSOIHEY}

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	2026-07-05T02:04:32.952062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f27a1f9be884f3d8307c02db093907262a6c688cd1420df62a3b7455a61c364c

Aliases

arxiv: 2101.01421 · arxiv_version: 2101.01421v1 · doi: 10.48550/arxiv.2101.01421 · pith_short_12: 6J5B7G7IQTZ5 · pith_short_16: 6J5B7G7IQTZ5QMD4 · pith_short_8: 6J5B7G7I

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/6J5B7G7IQTZ5QMD4ALNQSOIHEY \
  | 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: f27a1f9be884f3d8307c02db093907262a6c688cd1420df62a3b7455a61c364c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b7dd13c467deb56567b1b42080f0d2d8a2f514fb1d7380d615620ba9c1fdbb8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-01-05T09:12:48Z",
    "title_canon_sha256": "71e73cf82a048d69f7070241681f81c527eadeb849337d51033ece7dcdc097c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.01421",
    "kind": "arxiv",
    "version": 1
  }
}