Pith Number

pith:IRON4VJS

pith:2018:IRON4VJS565MGDQ3L74SYC654V

not attested not anchored not stored refs pending

Semi-fragile Tamper Detection and Recovery based on Region Categorization and Two-Sided Circular Block Dependency

Seyyed Hossein Soleymani

arxiv:1804.02680 v1 · 2018-04-08 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRON4VJS565MGDQ3L74SYC654V}

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	2026-05-18T00:18:58.699003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

445cde5532efbac30e1b5ff92c0bdde57834bc403275af5a17a61a42eac6b531

Aliases

arxiv: 1804.02680 · arxiv_version: 1804.02680v1 · doi: 10.48550/arxiv.1804.02680 · pith_short_12: IRON4VJS565M · pith_short_16: IRON4VJS565MGDQ3 · pith_short_8: IRON4VJS

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/IRON4VJS565MGDQ3L74SYC654V \
  | 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: 445cde5532efbac30e1b5ff92c0bdde57834bc403275af5a17a61a42eac6b531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce85673c96ca8ddd06dcef0e4d0a0a3814eadcd629a887c8f7806a0e1e3b2260",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2018-04-08T12:18:14Z",
    "title_canon_sha256": "357aa17780f57c8649ccf1e9107109235ba0d27b1dc42606f6405339cc482daf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02680",
    "kind": "arxiv",
    "version": 1
  }
}