Pith Number

pith:G7XLLGAK

pith:2011:G7XLLGAKTXGWJZMVIX5RHTW3T5

not attested not anchored not stored refs pending

Semiregularity and obstructions of complete intersections

Donatella Iacono, Marco Manetti

arxiv:1112.0425 v4 · 2011-12-02 · math.AG · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G7XLLGAKTXGWJZMVIX5RHTW3T5}

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	2026-05-18T03:07:43.269495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37eeb5980a9dcd64e59545fb13cedb9f5d8ab731f5ab4297e9ff890b4ba48839

Aliases

arxiv: 1112.0425 · arxiv_version: 1112.0425v4 · doi: 10.48550/arxiv.1112.0425 · pith_short_12: G7XLLGAKTXGW · pith_short_16: G7XLLGAKTXGWJZMV · pith_short_8: G7XLLGAK

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/G7XLLGAKTXGWJZMVIX5RHTW3T5 \
  | 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: 37eeb5980a9dcd64e59545fb13cedb9f5d8ab731f5ab4297e9ff890b4ba48839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "656e980e2c01a7a6cba765bec2b22403c644d97fcd584f00da773df9aa21cec8",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-12-02T10:58:33Z",
    "title_canon_sha256": "abb197106e75362bd298d7a3fe7ffab62d08164a9d8808cf010c3ff2b10f02c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0425",
    "kind": "arxiv",
    "version": 4
  }
}