Pith Number

pith:OSIQN4Q4

pith:2012:OSIQN4Q42X2UYSZM6QBQ33WLSI

not attested not anchored not stored refs pending

Image Authentication Technique in Frequency Domain based on Discrete Fourier Transformation (IATFDDFT)

J. K. Mandal, Nabin Ghoshal

arxiv:1212.3371 v1 · 2012-12-14 · 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{OSIQN4Q42X2UYSZM6QBQ33WLSI}

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	2026-05-18T03:38:24.836262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

749106f21cd5f54c4b2cf4030deecb920846651a7190165a8b78fd19cce4c406

Aliases

arxiv: 1212.3371 · arxiv_version: 1212.3371v1 · doi: 10.48550/arxiv.1212.3371 · pith_short_12: OSIQN4Q42X2U · pith_short_16: OSIQN4Q42X2UYSZM · pith_short_8: OSIQN4Q4

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/OSIQN4Q42X2UYSZM6QBQ33WLSI \
  | 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: 749106f21cd5f54c4b2cf4030deecb920846651a7190165a8b78fd19cce4c406

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "683f120762e268a6c96eaf77e4800249c21bbb116603224fd70d4ce1b4af6d1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-12-14T00:04:06Z",
    "title_canon_sha256": "9ae45dbcd5423c7dae3f6a1ab7804669d15a591915fe1034e5cf3e60fcc1926b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3371",
    "kind": "arxiv",
    "version": 1
  }
}