Pith Number

pith:DPUSRPQX

pith:2007:DPUSRPQXIE2VYHGAG3QTBJFITZ

not attested not anchored not stored refs pending

Ideals of varieties parameterized by certain symmetric tensors

Alessandra Bernardi

arxiv:0705.1942 v3 · 2007-05-14 · 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{DPUSRPQXIE2VYHGAG3QTBJFITZ}

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	2026-05-18T04:21:59.913069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1be928be1741355c1cc036e130a4a89e44008d68b7decc2c87b3fe03c5770dbf

Aliases

arxiv: 0705.1942 · arxiv_version: 0705.1942v3 · doi: 10.48550/arxiv.0705.1942 · pith_short_12: DPUSRPQXIE2V · pith_short_16: DPUSRPQXIE2VYHGA · pith_short_8: DPUSRPQX

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/DPUSRPQXIE2VYHGAG3QTBJFITZ \
  | 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: 1be928be1741355c1cc036e130a4a89e44008d68b7decc2c87b3fe03c5770dbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5d3c262714655f6cbb13a267900a00bcb1bed0d8cb97d7014cb0f2b0caf9711",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-05-14T13:36:46Z",
    "title_canon_sha256": "2a19886f6ed5fce7df309fdcd980b39f19d9a83df27648a028951e0439551d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.1942",
    "kind": "arxiv",
    "version": 3
  }
}