Pith Number

pith:R76JZMAM

pith:2017:R76JZMAMKIUBYBNTMW4CD7CXJR

not attested not anchored not stored refs pending

Privacy Assessment of De-identified Opal Data: A report for Transport for NSW

Benjamin I. P. Rubinstein, Chris Culnane, Vanessa Teague

arxiv:1704.08547 v1 · 2017-04-27 · 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{R76JZMAMKIUBYBNTMW4CD7CXJR}

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	2026-05-18T00:45:27.406356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ffc9cb00c52281c05b365b821fc574c6e39fcd7bc275f6599cd6eab12f33a8a

Aliases

arxiv: 1704.08547 · arxiv_version: 1704.08547v1 · doi: 10.48550/arxiv.1704.08547 · pith_short_12: R76JZMAMKIUB · pith_short_16: R76JZMAMKIUBYBNT · pith_short_8: R76JZMAM

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/R76JZMAMKIUBYBNTMW4CD7CXJR \
  | 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: 8ffc9cb00c52281c05b365b821fc574c6e39fcd7bc275f6599cd6eab12f33a8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60d1ec23a8bd687c2dd73c51658a14dc000c87b35e2d0e6ac3f01d6ab04f0c8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-04-27T13:12:29Z",
    "title_canon_sha256": "2534efd9b833a800f33e89cdfe8337265f6a00495b1f1f6fcc68177a4dd416fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08547",
    "kind": "arxiv",
    "version": 1
  }
}