Pith Number

pith:UQCG7QSG

pith:2019:UQCG7QSGCTTPNRMP4ACUK4WRFR

not attested not anchored not stored refs pending

Helping Computers Understand Geographically-Bound Activity Restrictions

B. Hecht, J. Sch\"oning, M. Soll, P. Naumann, P. Samsonov

arxiv:1904.01673 v1 · 2019-04-02 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQCG7QSGCTTPNRMP4ACUK4WRFR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:49:30.233607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4046fc24614e6f6c58fe0054572d12c46667a5aae39a3d076cfe32d9c96d856

Aliases

arxiv: 1904.01673 · arxiv_version: 1904.01673v1 · doi: 10.48550/arxiv.1904.01673 · pith_short_12: UQCG7QSGCTTP · pith_short_16: UQCG7QSGCTTPNRMP · pith_short_8: UQCG7QSG

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/UQCG7QSGCTTPNRMP4ACUK4WRFR \
  | 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: a4046fc24614e6f6c58fe0054572d12c46667a5aae39a3d076cfe32d9c96d856

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df780065f94bfca4f5fdb53b446797eacfc962eb850d45d7064915399b14ff14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-04-02T21:30:41Z",
    "title_canon_sha256": "c30f5369c7ba9a040d59cd840bb09ed42e830be81cc3308ea18f3ce8b81e4960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01673",
    "kind": "arxiv",
    "version": 1
  }
}