Pith Number

pith:GK4FTP74

pith:2018:GK4FTP74KY6YPQ742OS655AJRY

not attested not anchored not stored refs pending

Hadamard Star Configurations

Adam Van Tuyl, Elena Guardo, Enrico Carlini, Maria Virginia Catalisano

arxiv:1801.04579 v1 · 2018-01-14 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GK4FTP74KY6YPQ742OS655AJRY}

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	2026-05-18T00:26:03.958374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32b859bffc563d87c3fcd3a5eef4098e19b823af594002ee8c7a8773f2d6e8ac

Aliases

arxiv: 1801.04579 · arxiv_version: 1801.04579v1 · doi: 10.48550/arxiv.1801.04579 · pith_short_12: GK4FTP74KY6Y · pith_short_16: GK4FTP74KY6YPQ74 · pith_short_8: GK4FTP74

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/GK4FTP74KY6YPQ742OS655AJRY \
  | 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: 32b859bffc563d87c3fcd3a5eef4098e19b823af594002ee8c7a8773f2d6e8ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5da5fb52838028a7f16d31bc9afa249a38a5dae9bd26c6bcb06593a4a7d4813a",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-14T16:11:52Z",
    "title_canon_sha256": "032c05ebe1ca089d81602d53a8d4f44a3f216b5a353057d584cd78f315ee8fc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04579",
    "kind": "arxiv",
    "version": 1
  }
}