Pith Number

pith:J4IBFJQR

pith:2018:J4IBFJQREYEFSEGI7OVDNAR4ZG

not attested not anchored not stored refs pending

ERA: Towards Privacy Preservation and Verifiability for Online Ad Exchanges

Chaoyue Niu, Fan Wu, Guihai Chen, Minping Zhou, Zhenzhe Zheng

arxiv:1804.01735 v1 · 2018-04-05 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4IBFJQREYEFSEGI7OVDNAR4ZG}

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	2026-05-18T00:19:10.182546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f1012a61126085910c8fbaa36823cc987c53736696781c020426d5e7ebb24d2

Aliases

arxiv: 1804.01735 · arxiv_version: 1804.01735v1 · doi: 10.48550/arxiv.1804.01735 · pith_short_12: J4IBFJQREYEF · pith_short_16: J4IBFJQREYEFSEGI · pith_short_8: J4IBFJQR

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/J4IBFJQREYEFSEGI7OVDNAR4ZG \
  | 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: 4f1012a61126085910c8fbaa36823cc987c53736696781c020426d5e7ebb24d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e741f118323f5e7dd1103a7bb6228c4ad5a3961dcc3c14e58449924dcf2bae65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2018-04-05T08:37:25Z",
    "title_canon_sha256": "4414a12eb1911ca566e0352cf522b93fe8d5b5d39f6552736e20422282a6cee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01735",
    "kind": "arxiv",
    "version": 1
  }
}