Pith Number

pith:2EDEMBDL

pith:2012:2EDEMBDL4LBAHDVFQGX2OYINYU

not attested not anchored not stored refs pending

A Unifying Framework to Characterize the Power of a Language to Express Relations

Alberto Leporati, Giancarlo Mauri, Gianluca Della Vedova, Paola Bonizzoni, Peter J. Cameron

arxiv:1203.4732 v1 · 2012-03-21 · 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{2EDEMBDL4LBAHDVFQGX2OYINYU}

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	2026-05-18T03:59:37.328121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d10646046be2c2038ea581afa7610dc51da51c270b37880a0ed110461ce9b5a8

Aliases

arxiv: 1203.4732 · arxiv_version: 1203.4732v1 · doi: 10.48550/arxiv.1203.4732 · pith_short_12: 2EDEMBDL4LBA · pith_short_16: 2EDEMBDL4LBAHDVF · pith_short_8: 2EDEMBDL

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/2EDEMBDL4LBAHDVFQGX2OYINYU \
  | 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: d10646046be2c2038ea581afa7610dc51da51c270b37880a0ed110461ce9b5a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ef6f3f4546a2834c14765fb32e11049025abe1a029d260da4cbb0eae7cb0559",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-03-21T13:34:38Z",
    "title_canon_sha256": "69679df94d66446cbbb9699eac290a22395eb1642c0d1aaf48b8f64a832e94fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4732",
    "kind": "arxiv",
    "version": 1
  }
}