Pith Number

pith:UGDOU7KS

pith:2010:UGDOU7KS3K4ZAC65X5U2TFAU5P

not attested not anchored not stored refs pending

On The Power of Tree Projections: Structural Tractability of Enumerating CSP Solutions

Francesco Scarcello, Gianluigi Greco

arxiv:1005.1567 v2 · 2010-05-10 · cs.AI · 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{UGDOU7KS3K4ZAC65X5U2TFAU5P}

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	2026-05-18T03:18:08.512417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a186ea7d52dab9900bddbf69a99414ebd0e3cd6aebbc6ff2f5be6cd5ea3563e2

Aliases

arxiv: 1005.1567 · arxiv_version: 1005.1567v2 · doi: 10.48550/arxiv.1005.1567 · pith_short_12: UGDOU7KS3K4Z · pith_short_16: UGDOU7KS3K4ZAC65 · pith_short_8: UGDOU7KS

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/UGDOU7KS3K4ZAC65X5U2TFAU5P \
  | 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: a186ea7d52dab9900bddbf69a99414ebd0e3cd6aebbc6ff2f5be6cd5ea3563e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e071ceb6241981ded2c8c4085a98deb608af65ae4eab511e89921fe68a6cc66f",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2010-05-10T14:46:29Z",
    "title_canon_sha256": "0fbb82be1871cf6ea160cfaa6fd43f81035b478e2030e56f170530577d316862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1567",
    "kind": "arxiv",
    "version": 2
  }
}