Pith Number

pith:VOBKOKW6

pith:2017:VOBKOKW63ISNI5QRDYB6OXF5LD

not attested not anchored not stored refs pending

walk2friends: Inferring Social Links from Mobility Profiles

Jun Pang, Mathias Humbert, Michael Backes, Yang Zhang

arxiv:1708.08221 v2 · 2017-08-28 · cs.CR · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VOBKOKW63ISNI5QRDYB6OXF5LD}

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	2026-05-18T00:35:54.942590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab82a72adeda24d476111e03e75cbd58ff9dc393e03707890bf71da364a77c36

Aliases

arxiv: 1708.08221 · arxiv_version: 1708.08221v2 · doi: 10.48550/arxiv.1708.08221 · pith_short_12: VOBKOKW63ISN · pith_short_16: VOBKOKW63ISNI5QR · pith_short_8: VOBKOKW6

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/VOBKOKW63ISNI5QRDYB6OXF5LD \
  | 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: ab82a72adeda24d476111e03e75cbd58ff9dc393e03707890bf71da364a77c36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "809b0f8752dd11a4ee665c67c335c6357f331ae9f25543c3c0f43d468578747e",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-08-28T07:37:02Z",
    "title_canon_sha256": "05c4adbb55b2fa626b8b333699d5e1fb0bccd60e47c80fd74576b87439aab935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08221",
    "kind": "arxiv",
    "version": 2
  }
}