Pith Number

pith:56VEOHRF

pith:2012:56VEOHRF5DXVHYPNQYWV5PAKA7

not attested not anchored not stored refs pending

Star configurations on generic hypersurfaces

Adam Van Tuyl, Elena Guardo, Enrico Carlini

arxiv:1204.0475 v2 · 2012-04-02 · 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{56VEOHRF5DXVHYPNQYWV5PAKA7}

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	2026-05-18T03:58:04.081061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efaa471e25e8ef53e1ed862d5ebc0a07df6d4f47e8ccbae7d4d2fda47a4d8787

Aliases

arxiv: 1204.0475 · arxiv_version: 1204.0475v2 · doi: 10.48550/arxiv.1204.0475 · pith_short_12: 56VEOHRF5DXV · pith_short_16: 56VEOHRF5DXVHYPN · pith_short_8: 56VEOHRF

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/56VEOHRF5DXVHYPNQYWV5PAKA7 \
  | 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: efaa471e25e8ef53e1ed862d5ebc0a07df6d4f47e8ccbae7d4d2fda47a4d8787

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d80f2cc2797c1c69fad4e6d606da8d16f612ef68b8b218a60a5c5085e9e1c41d",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-04-02T17:33:37Z",
    "title_canon_sha256": "631248ab97a469b548d9ad66fa00e474f73084b7e875ce04334e75dacf90b4ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0475",
    "kind": "arxiv",
    "version": 2
  }
}