Pith Number

pith:H6HJKUMY

pith:2018:H6HJKUMYVWWLRPEBAU63DAI3QN

not attested not anchored not stored refs pending

Detecting home locations from CDR data: introducing spatial uncertainty to the state-of-the-art

Fernando Reis, Maarten Vanhoof, Thomas Ploetz, Zbigniew Smoreda

arxiv:1808.06398 v1 · 2018-08-20 · cs.CY · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6HJKUMYVWWLRPEBAU63DAI3QN}

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	2026-05-18T00:07:45.082275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8e955198adacb8bc81053db1811b8360172022c14cfae9191bddbc1ab26d38

Aliases

arxiv: 1808.06398 · arxiv_version: 1808.06398v1 · doi: 10.48550/arxiv.1808.06398 · pith_short_12: H6HJKUMYVWWL · pith_short_16: H6HJKUMYVWWLRPEB · pith_short_8: H6HJKUMY

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/H6HJKUMYVWWLRPEBAU63DAI3QN \
  | 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: 3f8e955198adacb8bc81053db1811b8360172022c14cfae9191bddbc1ab26d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77765eb68ab1a575b726204095ac30fa9a056e6ddf7be44d956cc0f980fc9b2c",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-08-20T11:41:51Z",
    "title_canon_sha256": "88295f13918e5fc44d90efa9ac0b58a3175548488925643e225a4867344efa47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06398",
    "kind": "arxiv",
    "version": 1
  }
}