Pith Number

pith:Q2VAIVX4

pith:2021:Q2VAIVX4TADMZKATIXCI6Y4DX4

not attested not anchored not stored refs pending

Spatiotemporal Data Mining: A Survey on Challenges and Open Problems

Abdelkarim Erradi, Ali Hamdi, Amr Mohamed, Flora Salim, Khaled Shaban, Shakila Khan Rumi

arxiv:2103.17128 v1 · 2021-03-31 · cs.LG · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2VAIVX4TADMZKATIXCI6Y4DX4}

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	2026-07-05T02:28:13.103216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86aa0456fc9806cca81345c48f6383bf13a9f1487c54215599fc99fcafd4d256

Aliases

arxiv: 2103.17128 · arxiv_version: 2103.17128v1 · doi: 10.48550/arxiv.2103.17128 · pith_short_12: Q2VAIVX4TADM · pith_short_16: Q2VAIVX4TADMZKAT · pith_short_8: Q2VAIVX4

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/Q2VAIVX4TADMZKATIXCI6Y4DX4 \
  | 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: 86aa0456fc9806cca81345c48f6383bf13a9f1487c54215599fc99fcafd4d256

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd94a70e967d365a2c75cff593397cbf6c4118bb7d3c14a1b1a049f06b867ea6",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-31T14:48:39Z",
    "title_canon_sha256": "19297de9831864ea1e580b9c106df6aa462cabae82f771801170fc4fd69046a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.17128",
    "kind": "arxiv",
    "version": 1
  }
}