Pith Number

pith:MQRRDAFI

pith:2019:MQRRDAFIHJRV6CXRVFCNOCIUB6

not attested not anchored not stored refs pending

20 Years of DDoS: a Call to Action

Angelos Stavrou, Eric Osterweil, Lixia Zhang

arxiv:1904.02739 v2 · 2019-04-04 · cs.NI · 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{MQRRDAFIHJRV6CXRVFCNOCIUB6}

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	2026-05-17T23:48:04.423664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64231180a83a635f0af1a944d709140f8abeaec08849e1404a72f009e8c4649c

Aliases

arxiv: 1904.02739 · arxiv_version: 1904.02739v2 · doi: 10.48550/arxiv.1904.02739 · pith_short_12: MQRRDAFIHJRV · pith_short_16: MQRRDAFIHJRV6CXR · pith_short_8: MQRRDAFI

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/MQRRDAFIHJRV6CXRVFCNOCIUB6 \
  | 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: 64231180a83a635f0af1a944d709140f8abeaec08849e1404a72f009e8c4649c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9308404ff73be1e14ecd9bfe22c025861a95b1f6baa3ca54050df2f957bddd24",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2019-04-04T18:24:43Z",
    "title_canon_sha256": "d278831a7a5eb1a85466ac4c4e698d0b875586741428bd8482e32d4deb9b853e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02739",
    "kind": "arxiv",
    "version": 2
  }
}