Pith Number

pith:VCGF4AGE

pith:2020:VCGF4AGE2FU7W3M7PFDA6VSTZK

not attested not anchored not stored refs pending

In Search of Lost Utility: Private Location Data

Gergely \'Acs, Gergely Bicz\'ok, Szilvia Lesty\'an

arxiv:2008.01665 v2 · 2020-08-04 · 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{VCGF4AGE2FU7W3M7PFDA6VSTZK}

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	2026-07-05T04:04:35.393048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a88c5e00c4d169fb6d9f79460f5653ca952e435b4ed084088ce741d8dce4d139

Aliases

arxiv: 2008.01665 · arxiv_version: 2008.01665v2 · doi: 10.48550/arxiv.2008.01665 · pith_short_12: VCGF4AGE2FU7 · pith_short_16: VCGF4AGE2FU7W3M7 · pith_short_8: VCGF4AGE

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/VCGF4AGE2FU7W3M7PFDA6VSTZK \
  | 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: a88c5e00c4d169fb6d9f79460f5653ca952e435b4ed084088ce741d8dce4d139

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8aa476a9948a20af95e4d95e56d17a1202b2c48e71392ce27e0005426bba6c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2020-08-04T15:47:40Z",
    "title_canon_sha256": "61007c54da76a377f1fbeabfa0eee2292088bced450a2aceb0b38cdb64388b00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.01665",
    "kind": "arxiv",
    "version": 2
  }
}