Pith Number

pith:VWOVJF77

pith:2018:VWOVJF776PU7JJVA6DELYQN7HE

not attested not anchored not stored refs pending

Sapphire: Querying RDF Data Made Simple

Ahmed El-Roby, Ashraf Aboulnaga, Jimmy Lin, Khaled Ammar

arxiv:1805.11728 v2 · 2018-05-29 · 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{VWOVJF776PU7JJVA6DELYQN7HE}

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	2026-05-18T00:05:50.614523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad9d5497fff3e9f4a6a0f0c8bc41bf3906eb8548d0bb104830a0beeefab904c3

Aliases

arxiv: 1805.11728 · arxiv_version: 1805.11728v2 · doi: 10.48550/arxiv.1805.11728 · pith_short_12: VWOVJF776PU7 · pith_short_16: VWOVJF776PU7JJVA · pith_short_8: VWOVJF77

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/VWOVJF776PU7JJVA6DELYQN7HE \
  | 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: ad9d5497fff3e9f4a6a0f0c8bc41bf3906eb8548d0bb104830a0beeefab904c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bb18932e97f195cffb239acbd5decbf6cfac734c301366e3653d281a4381623",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2018-05-29T22:22:21Z",
    "title_canon_sha256": "0942d3136fc67c3b304f491308a9ff39a1d0cdad24aca02031e2a92f29f0568d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11728",
    "kind": "arxiv",
    "version": 2
  }
}