Pith Number

pith:EY2IVK6W

pith:2012:EY2IVK6WY5NX3XWY4YL5HWMPH6

not attested not anchored not stored refs pending

A Co-Prime Blur Scheme for Data Security in Video Surveillance

Christopher Thorpe, David Saunders, Feng Li, Jingyi Yu, Zhan Yu, Zijia Li

arxiv:1203.4874 v1 · 2012-03-22 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY2IVK6WY5NX3XWY4YL5HWMPH6}

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	2026-05-18T03:59:28.515734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26348aabd6c75b7dded8e617d3d98f3fa52a8598bb7d8a5012c2dc65f110c1a2

Aliases

arxiv: 1203.4874 · arxiv_version: 1203.4874v1 · doi: 10.48550/arxiv.1203.4874 · pith_short_12: EY2IVK6WY5NX · pith_short_16: EY2IVK6WY5NX3XWY · pith_short_8: EY2IVK6W

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/EY2IVK6WY5NX3XWY4YL5HWMPH6 \
  | 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: 26348aabd6c75b7dded8e617d3d98f3fa52a8598bb7d8a5012c2dc65f110c1a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "243a0d5807342a9f38a88d8dc740abf658ed0b68c9c9d0c8cfa61a6b2ea6463b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-03-22T02:57:53Z",
    "title_canon_sha256": "c75d317d280fd36b0dd5828388021415e56759a69b93ca95e15d315b0b75d74f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4874",
    "kind": "arxiv",
    "version": 1
  }
}