Pith Number

pith:C3C3A7SC

pith:2018:C3C3A7SCFIDOCKCPZ4WWIP3DI4

not attested not anchored not stored refs pending

BSSSQS: A Blockchain Based Smart and Secured Scheme for Question Sharing in the Smart Education System

Anik Islam, Md. Fazlul Kader, Soo Young Shin

arxiv:1812.03917 v1 · 2018-12-05 · cs.CR · cs.DC · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C3C3A7SCFIDOCKCPZ4WWIP3DI4}

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	2026-05-17T23:58:43.581983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16c5b07e422a06e1284fcf2d643f63470fcf800f9fb4239b8a46914492577278

Aliases

arxiv: 1812.03917 · arxiv_version: 1812.03917v1 · doi: 10.48550/arxiv.1812.03917 · pith_short_12: C3C3A7SCFIDO · pith_short_16: C3C3A7SCFIDOCKCP · pith_short_8: C3C3A7SC

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/C3C3A7SCFIDOCKCPZ4WWIP3DI4 \
  | 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: 16c5b07e422a06e1284fcf2d643f63470fcf800f9fb4239b8a46914492577278

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbe90b7f2a44178b014e9e93939e61ac5feecb589ff5677e7d82778edbabf887",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-12-05T00:28:30Z",
    "title_canon_sha256": "353d8d3417580642be2c4601aa5c04e0f16bd91c80a937c022ad4626555c4b69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03917",
    "kind": "arxiv",
    "version": 1
  }
}