Pith Number

pith:PAMLWIBI

pith:2012:PAMLWIBIENNH22EDHU543FVZD3

not attested not anchored not stored refs pending

SPARQL for a Web of Linked Data: Semantics and Computability (Extended Version)

Olaf Hartig

arxiv:1203.1569 v2 · 2012-03-07 · 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{PAMLWIBIENNH22EDHU543FVZD3}

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	2026-05-18T03:58:25.991682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7818bb2028235a7d68833d3bcd96b91ed21cf37ee5934d2b28e3e34678a1b05e

Aliases

arxiv: 1203.1569 · arxiv_version: 1203.1569v2 · doi: 10.48550/arxiv.1203.1569 · pith_short_12: PAMLWIBIENNH · pith_short_16: PAMLWIBIENNH22ED · pith_short_8: PAMLWIBI

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/PAMLWIBIENNH22EDHU543FVZD3 \
  | 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: 7818bb2028235a7d68833d3bcd96b91ed21cf37ee5934d2b28e3e34678a1b05e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70d2f5cd69fdcff66d581ecda5af059dc66b07f23070d7c80f06eb0e2e0b2bf0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-03-07T18:53:35Z",
    "title_canon_sha256": "8811c2c6fda0f8badf29efa80d50ecaebbc420747a5bdbe70e8498f63bfacf3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1569",
    "kind": "arxiv",
    "version": 2
  }
}