Pith Number

pith:7QB62FHI

pith:2013:7QB62FHI6M3JHTP3K2JHEVXPI5

not attested not anchored not stored refs pending

The projective dimension of codimension two algebra presented by quadrics

Alexandra Seceleanu, Craig Huneke, Jason McCullough, Paolo Mantero

arxiv:1304.0745 v1 · 2013-04-02 · 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{7QB62FHI6M3JHTP3K2JHEVXPI5}

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	2026-05-18T03:29:14.383706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc03ed14e8f33693cdfb56927256ef475efb0df87aedaf14e1ca14d1f7bca18a

Aliases

arxiv: 1304.0745 · arxiv_version: 1304.0745v1 · doi: 10.48550/arxiv.1304.0745 · pith_short_12: 7QB62FHI6M3J · pith_short_16: 7QB62FHI6M3JHTP3 · pith_short_8: 7QB62FHI

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/7QB62FHI6M3JHTP3K2JHEVXPI5 \
  | 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: fc03ed14e8f33693cdfb56927256ef475efb0df87aedaf14e1ca14d1f7bca18a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4e760371c0b9ae8503c7caf5cd7a90a51711f5bc88fe4a2907e2464548c25f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-04-02T19:21:29Z",
    "title_canon_sha256": "78ae55708e494b5774eea632082daff0f14f8048fee698bda3a1c5630e4eaa2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0745",
    "kind": "arxiv",
    "version": 1
  }
}