Pith Number

pith:WX4BO6U2

pith:2015:WX4BO6U2Q2PLMCWIINIAHQAI7W

not attested not anchored not stored refs pending

Fragile Watermarking Using Finite Field Trigonometrical Transforms

H. M. de Oliveira, R. J. Cintra, R. M. Campello de Souza, V. S. Dimitrov

arxiv:1502.00296 v1 · 2015-02-01 · cs.MM · cs.IT · math.IT · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WX4BO6U2Q2PLMCWIINIAHQAI7W}

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	2026-05-18T02:27:56.726854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5f8177a9a869eb60ac8435003c008fdaf5d6e706f289c5d3393e2fde9c48db1

Aliases

arxiv: 1502.00296 · arxiv_version: 1502.00296v1 · doi: 10.48550/arxiv.1502.00296 · pith_short_12: WX4BO6U2Q2PL · pith_short_16: WX4BO6U2Q2PLMCWI · pith_short_8: WX4BO6U2

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/WX4BO6U2Q2PLMCWIINIAHQAI7W \
  | 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: b5f8177a9a869eb60ac8435003c008fdaf5d6e706f289c5d3393e2fde9c48db1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305951948cad2d65228001adeb1b280f24298491f6deef7d16a9c66b33ade89d",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2015-02-01T18:43:29Z",
    "title_canon_sha256": "3f1cd26585c50e19bbab42698210d094f5ff220c26fa201fd1b22f8371ffc78d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00296",
    "kind": "arxiv",
    "version": 1
  }
}