Pith Number

pith:OIT2VXUF

pith:2018:OIT2VXUFND56BH3CRUJLDLATHV

not attested not anchored not stored refs pending

PPLS: A Privacy-Preserving Location-Sharing Scheme in Vehicular Social Networks

Chang Xu, Chuan Zhang, Kashif Sharif, Liehuang Zhu, Mohsen Guizani, Xiaojiang Du, Xuan Xie

arxiv:1804.02431 v1 · 2018-04-06 · 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{OIT2VXUFND56BH3CRUJLDLATHV}

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	2026-05-18T00:18:59.534822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7227aade8568fbe09f628d12b1ac133d6a2ed66c130225c388ec9d710d79c113

Aliases

arxiv: 1804.02431 · arxiv_version: 1804.02431v1 · doi: 10.48550/arxiv.1804.02431 · pith_short_12: OIT2VXUFND56 · pith_short_16: OIT2VXUFND56BH3C · pith_short_8: OIT2VXUF

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/OIT2VXUFND56BH3CRUJLDLATHV \
  | 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: 7227aade8568fbe09f628d12b1ac133d6a2ed66c130225c388ec9d710d79c113

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "962dcd04fd371a50cc080f65ee70cc65666df1082fa7dbd750a019be5739f008",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-04-06T19:22:02Z",
    "title_canon_sha256": "01b73617c062cb03c3c6685323641caffb95e2c8c37f55551370fea2a4436907"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02431",
    "kind": "arxiv",
    "version": 1
  }
}