Pith Number

pith:KG2NQHVO

pith:2018:KG2NQHVOPKPSQ7MIEEYLUTBALY

not attested not anchored not stored refs pending

Characterizing Watermark Numbers encoded as Reducible Permutation Graphs against Malicious Attacks

Anna Mpanti, Leonidas Palios, Stavros D. Nikolopoulos

arxiv:1812.11080 v1 · 2018-12-28 · cs.DM · 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{KG2NQHVOPKPSQ7MIEEYLUTBALY}

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	2026-05-17T23:57:16.374219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51b4d81eae7a9f287d882130ba4c205e1d1b4c3b5b0f0863053f38e82794302e

Aliases

arxiv: 1812.11080 · arxiv_version: 1812.11080v1 · doi: 10.48550/arxiv.1812.11080 · pith_short_12: KG2NQHVOPKPS · pith_short_16: KG2NQHVOPKPSQ7MI · pith_short_8: KG2NQHVO

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/KG2NQHVOPKPSQ7MIEEYLUTBALY \
  | 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: 51b4d81eae7a9f287d882130ba4c205e1d1b4c3b5b0f0863053f38e82794302e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3f17354d4ff0ea04eaa1e90846b0a4828a5fb88a2d6219b673e53b8ca8a801e",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-12-28T16:07:59Z",
    "title_canon_sha256": "202d821eefb9e23f549963cfc9c512c34151e9569a2046ef5307ece1c44fec81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11080",
    "kind": "arxiv",
    "version": 1
  }
}