Pith Number

pith:7WEHUIJT

pith:2013:7WEHUIJTCOBV767WZR72ZHVXZU

not attested not anchored not stored refs pending

Towards a provably resilient scheme for graph-based watermarking

Davidson Boccardo, Jayme L. Szwarcfiter, Lucila M. S. Bento, Raphael C. S. Machado, Vin\'icius G. Pereira de S\'a

arxiv:1302.7262 v6 · 2013-02-28 · cs.MM · cs.CR · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WEHUIJTCOBV767WZR72ZHVXZU}

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	2026-05-18T03:03:21.099311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd887a213313835ffbf6cc7fac9eb7cd0fc66effb1cd70220f975208c5e3fedd

Aliases

arxiv: 1302.7262 · arxiv_version: 1302.7262v6 · doi: 10.48550/arxiv.1302.7262 · pith_short_12: 7WEHUIJTCOBV · pith_short_16: 7WEHUIJTCOBV767W · pith_short_8: 7WEHUIJT

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/7WEHUIJTCOBV767WZR72ZHVXZU \
  | 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: fd887a213313835ffbf6cc7fac9eb7cd0fc66effb1cd70220f975208c5e3fedd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f96ff4925c6a8c2194f2f79d014d47e867441b1ffecb18c828b2a5994b693b52",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2013-02-28T17:15:44Z",
    "title_canon_sha256": "04dfbed214dae2c683f44d813ba0ee32b7523201e87578d2def8c55c2a40bf16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7262",
    "kind": "arxiv",
    "version": 6
  }
}