Pith Number

pith:SSWYQMDX

pith:2018:SSWYQMDXH6OWRSURX3ZMOD7C4B

not attested not anchored not stored refs pending

Privacy, ethics, and data access: A case study of the Fragile Families Challenge

Arvind Narayanan, Ian Lundberg, Karen Levy, Matthew J. Salganik

arxiv:1809.00103 v1 · 2018-09-01 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SSWYQMDXH6OWRSURX3ZMOD7C4B}

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	2026-07-05T01:05:08.303105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ad8830773f9d68ca91bef2c70fe2e05172ce5428bb4db10566405f78749ff6

Aliases

arxiv: 1809.00103 · arxiv_version: 1809.00103v1 · doi: 10.48550/arxiv.1809.00103 · pith_short_12: SSWYQMDXH6OW · pith_short_16: SSWYQMDXH6OWRSUR · pith_short_8: SSWYQMDX

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/SSWYQMDXH6OWRSURX3ZMOD7C4B \
  | 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: 94ad8830773f9d68ca91bef2c70fe2e05172ce5428bb4db10566405f78749ff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6480464b51b686889a7246607a045af38956b6a27c200f3fa8280fb760fd490",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-09-01T02:42:04Z",
    "title_canon_sha256": "758323e71517b77556b4694ecd87ee7a9ea790c770cd8599ff89f297c7789a36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00103",
    "kind": "arxiv",
    "version": 1
  }
}