Pith Number

pith:KDSYSH6Q

pith:2010:KDSYSH6QMWDUMNVCOUQULUIYLF

not attested not anchored not stored refs pending

The Pet-Fish problem on the World-Wide Web

Bart D'Hooghe, Diederik Aerts, Marek Czachor, Sandro Sozzo

arxiv:1006.1930 v1 · 2010-06-10 · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KDSYSH6QMWDUMNVCOUQULUIYLF}

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	2026-05-18T04:22:11.482682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50e5891fd065874636a2752145d118595df28ba3de2364ace16c606015928980

Aliases

arxiv: 1006.1930 · arxiv_version: 1006.1930v1 · doi: 10.48550/arxiv.1006.1930 · pith_short_12: KDSYSH6QMWDU · pith_short_16: KDSYSH6QMWDUMNVC · pith_short_8: KDSYSH6Q

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/KDSYSH6QMWDUMNVCOUQULUIYLF \
  | 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: 50e5891fd065874636a2752145d118595df28ba3de2364ace16c606015928980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f1a628179f8042255c1577bd832c6c7f41f1f33d4e3d74e17617d3a83bff066",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2010-06-10T00:39:33Z",
    "title_canon_sha256": "ab94bfecbb2f8a0e208bcbd7286a59737251881361a8df5d2fa5c4dd3e834f2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1930",
    "kind": "arxiv",
    "version": 1
  }
}