Pith Number

pith:KPN54JHV

pith:2021:KPN54JHVHUWL2RIX2KDBVPU5DW

not attested not anchored not stored refs pending

HARPO: Learning to Subvert Online Behavioral Advertising

Jiang Zhang, Konstantinos Psounis, Muhammad Haroon, Zubair Shafiq

arxiv:2111.05792 v3 · 2021-11-09 · cs.LG · 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{KPN54JHVHUWL2RIX2KDBVPU5DW}

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	2026-07-05T03:34:47.612362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53dbde24f53d2cbd4517d2861abe9d1db304488ddc1cb112f7cbd6a88a21ffcc

Aliases

arxiv: 2111.05792 · arxiv_version: 2111.05792v3 · doi: 10.48550/arxiv.2111.05792 · pith_short_12: KPN54JHVHUWL · pith_short_16: KPN54JHVHUWL2RIX · pith_short_8: KPN54JHV

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/KPN54JHVHUWL2RIX2KDBVPU5DW \
  | 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: 53dbde24f53d2cbd4517d2861abe9d1db304488ddc1cb112f7cbd6a88a21ffcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f60811ae63030c0cb8598c822f240c62322c12277819d75e8ba9cbea3d2c600f",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-11-09T03:05:18Z",
    "title_canon_sha256": "6594381053869c1dd4c67996be8a489eba5d87f11c9d539c9ec26c102875fb2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.05792",
    "kind": "arxiv",
    "version": 3
  }
}