Pith Number

pith:VHD7TG5E

pith:2013:VHD7TG5E5OWXJAGVRAV4QZHGPZ

not attested not anchored not stored refs pending

BarQL: Collaborating Through Change

Lukasz Ziarek, Oliver Kennedy

arxiv:1303.4471 v1 · 2013-03-19 · 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{VHD7TG5E5OWXJAGVRAV4QZHGPZ}

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	2026-05-18T03:30:27.092178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9c7f99ba4ebad7480d5882bc864e67e7ee9a35d719dbc4f6e191e32709e6b62

Aliases

arxiv: 1303.4471 · arxiv_version: 1303.4471v1 · doi: 10.48550/arxiv.1303.4471 · pith_short_12: VHD7TG5E5OWX · pith_short_16: VHD7TG5E5OWXJAGV · pith_short_8: VHD7TG5E

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/VHD7TG5E5OWXJAGVRAV4QZHGPZ \
  | 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: a9c7f99ba4ebad7480d5882bc864e67e7ee9a35d719dbc4f6e191e32709e6b62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7673b6a2871d16ab40dba7539753c6544ad61642e3d6a2d1738a6717615f3004",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2013-03-19T02:15:24Z",
    "title_canon_sha256": "fd875827c02536324381fcb5854f12fb584f27919bc821386fa8b4c739b689b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4471",
    "kind": "arxiv",
    "version": 1
  }
}