Pith Number

pith:OJTNVLBX

pith:2012:OJTNVLBXHXP3NWMBPK4GCBKXHE

not attested not anchored not stored refs pending

Optimal Contrast Greyscale Visual Cryptography Schemes with Reversing

Ching-Nung Yang, Dao-Shun Wang, Lin Dong, Tao Song

arxiv:1210.6123 v1 · 2012-10-23 · 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{OJTNVLBXHXP3NWMBPK4GCBKXHE}

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	2026-05-18T03:42:33.184564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7266daac373ddfb6d9817ab86105573919ef0ea9e2617ea145d5b271db2be390

Aliases

arxiv: 1210.6123 · arxiv_version: 1210.6123v1 · doi: 10.48550/arxiv.1210.6123 · pith_short_12: OJTNVLBXHXP3 · pith_short_16: OJTNVLBXHXP3NWMB · pith_short_8: OJTNVLBX

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/OJTNVLBXHXP3NWMBPK4GCBKXHE \
  | 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: 7266daac373ddfb6d9817ab86105573919ef0ea9e2617ea145d5b271db2be390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "975e2752ce4dae00fd8f04abbc7c74ac7c8c4cac4ac97a0686d8e4916c6d99f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-10-23T04:11:24Z",
    "title_canon_sha256": "d2be4f5075976286f8aea58091bd714e26d52161c2241cb7d0ae95705d353c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6123",
    "kind": "arxiv",
    "version": 1
  }
}