Pith Number

pith:HDHEZYDL

pith:2017:HDHEZYDLIVCQRJZBRJTUC5G5LU

not attested not anchored not stored refs pending

Differentially Private Release of Public Transport Data: The Opal Use Case

Hassan Jameel Asghar, Mohamed Ali Kaafar, Paul Tyler

arxiv:1705.05957 v1 · 2017-05-16 · 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{HDHEZYDLIVCQRJZBRJTUC5G5LU}

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	2026-05-18T00:44:19.342434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ce4ce06b454508a7218a674174dd5d2a3fd0617c6285568b33695c0a31f16d

Aliases

arxiv: 1705.05957 · arxiv_version: 1705.05957v1 · doi: 10.48550/arxiv.1705.05957 · pith_short_12: HDHEZYDLIVCQ · pith_short_16: HDHEZYDLIVCQRJZB · pith_short_8: HDHEZYDL

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/HDHEZYDLIVCQRJZBRJTUC5G5LU \
  | 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: 38ce4ce06b454508a7218a674174dd5d2a3fd0617c6285568b33695c0a31f16d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b63337599f7d90b711c8950f885288390537e4264f6eed631252c755f8f733d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-05-16T23:43:46Z",
    "title_canon_sha256": "af03eb09d929139631a690ed5732c7f7b79a299b008958dd378ff1762c06c0b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05957",
    "kind": "arxiv",
    "version": 1
  }
}